diff --git a/libs/remix-tests/src/testRunner.ts b/libs/remix-tests/src/testRunner.ts
index b69e50716d..c99d07e1d1 100644
--- a/libs/remix-tests/src/testRunner.ts
+++ b/libs/remix-tests/src/testRunner.ts
@@ -96,7 +96,7 @@ function getAssertMethodLocation (fileAST: AstNode, testContractName: string, fu
                                                     && e.expression.expression.memberName === assertMethod
                                                     && e.expression.expression.expression.name === 'Assert'
                                                 )
-            location = assetExpression.expression.src
+            location = assetExpression && assetExpression.expression && assetExpression.expression.src
         }
     }
     return location