diff --git a/analysis/analysis-api-fir/tests-gen/org/jetbrains/kotlin/analysis/api/fir/test/cases/generated/cases/components/diagnosticProvider/FirIdeNormalAnalysisScriptSourceModuleCollectDiagnosticsTestGenerated.java b/analysis/analysis-api-fir/tests-gen/org/jetbrains/kotlin/analysis/api/fir/test/cases/generated/cases/components/diagnosticProvider/FirIdeNormalAnalysisScriptSourceModuleCollectDiagnosticsTestGenerated.java
index 2c667c86151..11ecf2af52b 100644
--- a/analysis/analysis-api-fir/tests-gen/org/jetbrains/kotlin/analysis/api/fir/test/cases/generated/cases/components/diagnosticProvider/FirIdeNormalAnalysisScriptSourceModuleCollectDiagnosticsTestGenerated.java
+++ b/analysis/analysis-api-fir/tests-gen/org/jetbrains/kotlin/analysis/api/fir/test/cases/generated/cases/components/diagnosticProvider/FirIdeNormalAnalysisScriptSourceModuleCollectDiagnosticsTestGenerated.java
@@ -54,5 +54,17 @@ public class FirIdeNormalAnalysisScriptSourceModuleCollectDiagnosticsTestGenerat
         public void testAllFilesPresentInSuppression() throws Exception {
             KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression"), Pattern.compile("^(.+)\\.kts$"), null, true);
         }
+
+        @Test
+        @TestMetadata("scriptUninitializedTopLevelProperty.kts")
+        public void testScriptUninitializedTopLevelProperty() throws Exception {
+            runTest("analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty.kts");
+        }
+
+        @Test
+        @TestMetadata("scriptUninitializedTopLevelProperty2.kts")
+        public void testScriptUninitializedTopLevelProperty2() throws Exception {
+            runTest("analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty2.kts");
+        }
     }
 }
diff --git a/analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty.kts b/analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty.kts
new file mode 100644
index 00000000000..114d0e2c7aa
--- /dev/null
+++ b/analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty.kts
@@ -0,0 +1,4 @@
+// IGNORE_FIR
+
+@Suppress("MUST_BE_INITIALIZED")
+val foo: Int
diff --git a/analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty.txt b/analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty.txt
new file mode 100644
index 00000000000..b3558378d02
--- /dev/null
+++ b/analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty.txt
@@ -0,0 +1,4 @@
+Diagnostics from elements:
+  for PSI element of type KtStringTemplateExpression at (1,11-32)
+    ERROR_SUPPRESSION      text ranges: [(10,31)]
+      PSI: KtStringTemplateExpression at (1,11-32)
diff --git a/analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty2.kts b/analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty2.kts
new file mode 100644
index 00000000000..4d93569c03c
--- /dev/null
+++ b/analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty2.kts
@@ -0,0 +1,8 @@
+// IGNORE_FIR
+// In FIR, there is currently a mismatch between the file's diagnostics and the individual elements' diagnostics, so we have to disable the
+// FIR test. It will be fixed by KT-63221.
+
+@Suppress("MUST_BE_INITIALIZED")
+val foo: Int
+
+val bar: String
diff --git a/analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty2.txt b/analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty2.txt
new file mode 100644
index 00000000000..b3558378d02
--- /dev/null
+++ b/analysis/analysis-api/testData/components/diagnosticsProvider/diagnostics/suppression/scriptUninitializedTopLevelProperty2.txt
@@ -0,0 +1,4 @@
+Diagnostics from elements:
+  for PSI element of type KtStringTemplateExpression at (1,11-32)
+    ERROR_SUPPRESSION      text ranges: [(10,31)]
+      PSI: KtStringTemplateExpression at (1,11-32)