diff --git a/src/test/test-hashmap.c b/src/test/test-hashmap.c
index 40be084ffb9..767cbd90e95 100644
--- a/src/test/test-hashmap.c
+++ b/src/test/test-hashmap.c
@@ -73,7 +73,7 @@ static void test_trivial_compare_func(void) {
 }
 
 static void test_string_compare_func(void) {
-        assert_se(!string_compare_func("fred", "wilma") == 0);
+        assert_se(string_compare_func("fred", "wilma") != 0);
         assert_se(string_compare_func("fred", "fred") == 0);
 }