diff --git a/platform/testFramework/src/com/intellij/platform/testFramework/assertion/moduleAssertion/SourceRootAssertions.kt b/platform/testFramework/src/com/intellij/platform/testFramework/assertion/moduleAssertion/SourceRootAssertions.kt
index 16c9c97882f6..04c1f77d1f7a 100644
--- a/platform/testFramework/src/com/intellij/platform/testFramework/assertion/moduleAssertion/SourceRootAssertions.kt
+++ b/platform/testFramework/src/com/intellij/platform/testFramework/assertion/moduleAssertion/SourceRootAssertions.kt
@@ -134,6 +134,6 @@ object SourceRootAssertions {
         }
       }
     }
-    assertEqualsUnordered(actualRoots, expectedRoots, messageSupplier)
+    assertEqualsUnordered(expectedRoots, actualRoots, messageSupplier)
   }
 }