diff --git a/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosticCompilerTestFE10TestdataTestGenerated.java b/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosticCompilerTestFE10TestdataTestGenerated.java
index 8d69dcd6d59..39b5bd7a717 100644
--- a/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosticCompilerTestFE10TestdataTestGenerated.java
+++ b/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosticCompilerTestFE10TestdataTestGenerated.java
@@ -28546,6 +28546,12 @@ public class DiagnosticCompilerTestFE10TestdataTestGenerated extends AbstractDia
                 runTest("compiler/testData/diagnostics/tests/override/MultipleDefaultsInSupertypesNoExplicitOverride.kt");
             }
 
+            @Test
+            @TestMetadata("NoOverrideAndWeakenedVisibilityOnOneLine.kt")
+            public void testNoOverrideAndWeakenedVisibilityOnOneLine() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/override/NoOverrideAndWeakenedVisibilityOnOneLine.kt");
+            }
+
             @Test
             @TestMetadata("NonGenerics.kt")
             public void testNonGenerics() throws Exception {
diff --git a/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated.java b/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated.java
index 50b3cd44641..a3eccfc2da3 100644
--- a/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated.java
+++ b/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated.java
@@ -28546,6 +28546,12 @@ public class LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated
                 runTest("compiler/testData/diagnostics/tests/override/MultipleDefaultsInSupertypesNoExplicitOverride.kt");
             }
 
+            @Test
+            @TestMetadata("NoOverrideAndWeakenedVisibilityOnOneLine.kt")
+            public void testNoOverrideAndWeakenedVisibilityOnOneLine() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/override/NoOverrideAndWeakenedVisibilityOnOneLine.kt");
+            }
+
             @Test
             @TestMetadata("NonGenerics.kt")
             public void testNonGenerics() throws Exception {
diff --git a/compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirLightTreeOldFrontendDiagnosticsTestGenerated.java b/compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirLightTreeOldFrontendDiagnosticsTestGenerated.java
index c03bf800101..04520c289d2 100644
--- a/compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirLightTreeOldFrontendDiagnosticsTestGenerated.java
+++ b/compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirLightTreeOldFrontendDiagnosticsTestGenerated.java
@@ -26374,6 +26374,12 @@ public class FirLightTreeOldFrontendDiagnosticsTestGenerated extends AbstractFir
                 runTest("compiler/testData/diagnostics/tests/override/MultipleDefaultsInSupertypesNoExplicitOverride.kt");
             }
 
+            @Test
+            @TestMetadata("NoOverrideAndWeakenedVisibilityOnOneLine.kt")
+            public void testNoOverrideAndWeakenedVisibilityOnOneLine() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/override/NoOverrideAndWeakenedVisibilityOnOneLine.kt");
+            }
+
             @Test
             @TestMetadata("NonGenerics.kt")
             public void testNonGenerics() throws Exception {
diff --git a/compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirPsiOldFrontendDiagnosticsTestGenerated.java b/compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirPsiOldFrontendDiagnosticsTestGenerated.java
index 6d9365297d1..c8992a2a74f 100644
--- a/compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirPsiOldFrontendDiagnosticsTestGenerated.java
+++ b/compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirPsiOldFrontendDiagnosticsTestGenerated.java
@@ -26380,6 +26380,12 @@ public class FirPsiOldFrontendDiagnosticsTestGenerated extends AbstractFirPsiDia
                 runTest("compiler/testData/diagnostics/tests/override/MultipleDefaultsInSupertypesNoExplicitOverride.kt");
             }
 
+            @Test
+            @TestMetadata("NoOverrideAndWeakenedVisibilityOnOneLine.kt")
+            public void testNoOverrideAndWeakenedVisibilityOnOneLine() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/override/NoOverrideAndWeakenedVisibilityOnOneLine.kt");
+            }
+
             @Test
             @TestMetadata("NonGenerics.kt")
             public void testNonGenerics() throws Exception {
diff --git a/compiler/testData/diagnostics/tests/override/NoOverrideAndWeakenedVisibilityOnOneLine.fir.kt b/compiler/testData/diagnostics/tests/override/NoOverrideAndWeakenedVisibilityOnOneLine.fir.kt
new file mode 100644
index 00000000000..6ac28027130
--- /dev/null
+++ b/compiler/testData/diagnostics/tests/override/NoOverrideAndWeakenedVisibilityOnOneLine.fir.kt
@@ -0,0 +1,7 @@
+internal interface InternalInterface {
+    val x: Any
+}
+
+class PublicClass : InternalInterface {
+    internal val <!VIRTUAL_MEMBER_HIDDEN!>x<!>: Any = 42
+}
diff --git a/compiler/testData/diagnostics/tests/override/NoOverrideAndWeakenedVisibilityOnOneLine.kt b/compiler/testData/diagnostics/tests/override/NoOverrideAndWeakenedVisibilityOnOneLine.kt
new file mode 100644
index 00000000000..4ae557cb30e
--- /dev/null
+++ b/compiler/testData/diagnostics/tests/override/NoOverrideAndWeakenedVisibilityOnOneLine.kt
@@ -0,0 +1,7 @@
+internal interface InternalInterface {
+    val x: Any
+}
+
+class PublicClass : InternalInterface {
+    <!CANNOT_WEAKEN_ACCESS_PRIVILEGE!>internal<!> val <!VIRTUAL_MEMBER_HIDDEN!>x<!>: Any = 42
+}
diff --git a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/DiagnosticTestGenerated.java b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/DiagnosticTestGenerated.java
index 640acbe5d93..3f7f5fc0d3a 100644
--- a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/DiagnosticTestGenerated.java
+++ b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/DiagnosticTestGenerated.java
@@ -28546,6 +28546,12 @@ public class DiagnosticTestGenerated extends AbstractDiagnosticTest {
                 runTest("compiler/testData/diagnostics/tests/override/MultipleDefaultsInSupertypesNoExplicitOverride.kt");
             }
 
+            @Test
+            @TestMetadata("NoOverrideAndWeakenedVisibilityOnOneLine.kt")
+            public void testNoOverrideAndWeakenedVisibilityOnOneLine() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/override/NoOverrideAndWeakenedVisibilityOnOneLine.kt");
+            }
+
             @Test
             @TestMetadata("NonGenerics.kt")
             public void testNonGenerics() throws Exception {