diff --git a/test/libsolidity/SolidityEndToEndTest.cpp b/test/libsolidity/SolidityEndToEndTest.cpp
index b0a69112dc8d..133387c8016d 100644
--- a/test/libsolidity/SolidityEndToEndTest.cpp
+++ b/test/libsolidity/SolidityEndToEndTest.cpp
@@ -14022,7 +14022,7 @@ BOOST_AUTO_TEST_CASE(flipping_sign_tests)
 		}
 	)";
 	compileAndRun(sourceCode);
-	ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(0)));
+	ABI_CHECK(callContractFunction("f()"), encodeArgs(true));
 }
 
 BOOST_AUTO_TEST_SUITE_END()