diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/binding/CodegenAnnotatingVisitor.java b/compiler/backend/src/org/jetbrains/kotlin/codegen/binding/CodegenAnnotatingVisitor.java
index 71a5d283ef1..f8ece668c2a 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/binding/CodegenAnnotatingVisitor.java
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/binding/CodegenAnnotatingVisitor.java
@@ -56,6 +56,7 @@ import org.jetbrains.kotlin.resolve.constants.EnumValue;
 import org.jetbrains.kotlin.resolve.constants.NullValue;
 import org.jetbrains.kotlin.resolve.descriptorUtil.DescriptorUtilsKt;
 import org.jetbrains.kotlin.types.KotlinType;
+import org.jetbrains.kotlin.types.checker.KotlinTypeChecker;
 import org.jetbrains.org.objectweb.asm.Type;
 
 import java.util.*;
@@ -559,6 +560,9 @@ class CodegenAnnotatingVisitor extends KtVisitorVoid {
         if (valueArguments == null) return;
 
         for (ValueParameterDescriptor valueParameter : original.getValueParameters()) {
+            ValueParameterDescriptor adaptedParameter = descriptor.getValueParameters().get(valueParameter.getIndex());
+            if (KotlinTypeChecker.DEFAULT.equalTypes(adaptedParameter.getType(), valueParameter.getType())) continue;
+
             SamType samType = SamType.create(TypeMapperUtilsKt.removeExternalProjections(valueParameter.getType()));
             if (samType == null) continue;
 
diff --git a/compiler/testData/codegen/box/sam/constructors/kt19251.kt b/compiler/testData/codegen/box/sam/constructors/kt19251.kt
new file mode 100644
index 00000000000..0b23924234f
--- /dev/null
+++ b/compiler/testData/codegen/box/sam/constructors/kt19251.kt
@@ -0,0 +1,14 @@
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+// FULL_JDK
+// FILE: test.kt
+fun box(): String {
+    val map = mutableMapOf<Fun, String>()
+    val fn = Fun { TODO() }
+    return map.computeIfAbsent(fn, { "OK" })
+}
+
+// FILE: Fun.java
+public interface Fun {
+    String invoke(String string);
+}
\ No newline at end of file
diff --git a/compiler/testData/codegen/box/sam/constructors/kt19251_child.kt b/compiler/testData/codegen/box/sam/constructors/kt19251_child.kt
new file mode 100644
index 00000000000..68dcd40f89a
--- /dev/null
+++ b/compiler/testData/codegen/box/sam/constructors/kt19251_child.kt
@@ -0,0 +1,17 @@
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+// FULL_JDK
+// FILE: test.kt
+fun box(): String {
+    val map = mutableMapOf<Fun, String>()
+    val fn = DerivedFun { TODO() }
+    return map.computeIfAbsent(fn, { "OK" })
+}
+
+// FILE: Fun.java
+public interface Fun {
+    String invoke(String string);
+}
+
+// FILE: DerivedFun.java
+public interface DerivedFun extends Fun {}
\ No newline at end of file
diff --git a/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java b/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
index 19e28ca14eb..681d109c453 100644
--- a/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
+++ b/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
@@ -17266,6 +17266,18 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
                 doTest(fileName);
             }
 
+            @TestMetadata("kt19251.kt")
+            public void testKt19251() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/sam/constructors/kt19251.kt");
+                doTest(fileName);
+            }
+
+            @TestMetadata("kt19251_child.kt")
+            public void testKt19251_child() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/sam/constructors/kt19251_child.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("nonLiteralComparator.kt")
             public void testNonLiteralComparator() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/sam/constructors/nonLiteralComparator.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
index 34a6fa678df..a0d93710791 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
@@ -17266,6 +17266,18 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("kt19251.kt")
+            public void testKt19251() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/sam/constructors/kt19251.kt");
+                doTest(fileName);
+            }
+
+            @TestMetadata("kt19251_child.kt")
+            public void testKt19251_child() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/sam/constructors/kt19251_child.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("nonLiteralComparator.kt")
             public void testNonLiteralComparator() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/sam/constructors/nonLiteralComparator.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
index d91f412f796..6463b3b9ab6 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
@@ -17266,6 +17266,18 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
                 doTest(fileName);
             }
 
+            @TestMetadata("kt19251.kt")
+            public void testKt19251() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/sam/constructors/kt19251.kt");
+                doTest(fileName);
+            }
+
+            @TestMetadata("kt19251_child.kt")
+            public void testKt19251_child() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/sam/constructors/kt19251_child.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("nonLiteralComparator.kt")
             public void testNonLiteralComparator() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/sam/constructors/nonLiteralComparator.kt");