diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b8d2c90..422cdbf 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -38,4 +38,4 @@ jobs:
         uses: reactivecircus/android-emulator-runner@v2
         with:
           api-level: 29
-          script: cd tests && ./gradlew connectedCheck
\ No newline at end of file
+          script: cd tests && ./gradlew connectedCheck --stacktrace
\ No newline at end of file
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index bf5ee4f..f4488dd 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -21,6 +21,6 @@ jobs:
           distribution: temurin
           cache: gradle
       - name: Publish to Maven Central
-        run: ./gradlew deployNexus
+        run: ./gradlew deployNexus --stacktrace
       - name: Publish to GitHub Packages
-        run: ./gradlew deployGithub
+        run: ./gradlew deployGithub --stacktrace
diff --git a/.github/workflows/snapshot.yml b/.github/workflows/snapshot.yml
index 81b0c79..3c7d420 100644
--- a/.github/workflows/snapshot.yml
+++ b/.github/workflows/snapshot.yml
@@ -21,4 +21,4 @@ jobs:
           distribution: temurin
           cache: gradle
       - name: Publish Nexus Snapshot
-        run: ./gradlew deployNexusSnapshot
\ No newline at end of file
+        run: ./gradlew deployNexusSnapshot --stacktrace
\ No newline at end of file
diff --git a/knee-compiler-plugin/src/main/kotlin/DownwardFunctions.kt b/knee-compiler-plugin/src/main/kotlin/DownwardFunctions.kt
index 97e39ce..da93c3a 100644
--- a/knee-compiler-plugin/src/main/kotlin/DownwardFunctions.kt
+++ b/knee-compiler-plugin/src/main/kotlin/DownwardFunctions.kt
@@ -22,7 +22,6 @@ import org.jetbrains.kotlin.backend.common.lower.irCatch
 import org.jetbrains.kotlin.ir.builders.*
 import org.jetbrains.kotlin.ir.builders.declarations.addValueParameter
 import org.jetbrains.kotlin.ir.builders.declarations.buildVariable
-import org.jetbrains.kotlin.ir.declarations.IrClass
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
 import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
 import org.jetbrains.kotlin.ir.expressions.impl.IrConstImpl
@@ -59,7 +58,16 @@ private fun KneeDownwardFunction.makeCodegen(codegen: KneeCodegen, signature: Do
                 if (source.isSuspend) {
                     addModifiers(KModifier.SUSPEND)
                 }
-                if (kind is Kind.InterfaceMember || (source as? IrSimpleFunction)?.overriddenSymbols?.isNotEmpty() == true) {
+                // Needs override: (source as? IrSimpleFunction)?.overriddenSymbols?.isNotEmpty() == true
+                // But the JVM hierarchy doesn't match the KN hierarchy, supertypes may be missing, so this needs to be treated differently.
+                // Could merge this logic with that of DownwardProperties
+                val isOverride = when {
+                    kind is Kind.InterfaceMember -> true
+                    source !is IrSimpleFunction -> false
+                    source.overriddenSymbols.any { it.owner.parentClassOrNull?.defaultType?.isAny() == true } -> true // toString(), equals() or hashCode()
+                    else -> false
+                }
+                if (isOverride) {
                     addModifiers(KModifier.OVERRIDE)
                 }
             }