diff --git a/tests/unit/hook.c b/tests/unit/hook.c
index 60bbf551..63203696 100644
--- a/tests/unit/hook.c
+++ b/tests/unit/hook.c
@@ -90,7 +90,7 @@ char *test_LM_HookCodeEx(struct hook_args *arg)
 #	ifdef _WIN32
 	uint32_t offset;
 
-	mu_assert("failed to get real function address", LM_ReadMemoryEx(arg->ptargetproc, wait_message_addr + 1, &offset, sizeof(offset)) == 0);
+	mu_assert("failed to get real function address", LM_ReadMemoryEx(arg->ptargetproc, wait_message_addr + 1, &offset, sizeof(offset)) != 0);
 	wait_message_addr += (lm_address_t)offset + 5;
 	printf("<RESOLVED JMP TO: %p> ", (void *)wait_message_addr);
 	fflush(stdout);