diff --git a/libraries/tools/kotlin-gradle-plugin-test/src/main/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt b/libraries/tools/kotlin-gradle-plugin-test/src/main/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt
index de0aa9a0e9a..8733e8bc320 100644
--- a/libraries/tools/kotlin-gradle-plugin-test/src/main/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt
+++ b/libraries/tools/kotlin-gradle-plugin-test/src/main/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt
@@ -37,7 +37,7 @@ open class BaseGradleIT {
     }
 
     fun CompiledProject.assertSuccessful(): CompiledProject {
-        assertEquals(resultCode, 0)
+        assertEquals(resultCode, 0, "Gradle build failed")
         return this
     }