diff --git a/src/corelib/kernel/qcore_mac.mm b/src/corelib/kernel/qcore_mac.mm
index 16c35cd3fa7..60149739984 100644
--- a/src/corelib/kernel/qcore_mac.mm
+++ b/src/corelib/kernel/qcore_mac.mm
@@ -378,7 +378,7 @@ std::optional<uint32_t> qt_mac_sipConfiguration()
 }
 
 #define CHECK_SPAWN(expr) \
-    if (int err = (expr)) { \
+    if ((expr) != 0) { \
         posix_spawnattr_destroy(&attr); \
         return; \
     }