diff --git a/code/ryzom/tools/client/ryzom_installer/src/utils.cpp b/code/ryzom/tools/client/ryzom_installer/src/utils.cpp
index c4c9e3a02..8b66077bf 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/utils.cpp
+++ b/code/ryzom/tools/client/ryzom_installer/src/utils.cpp
@@ -286,9 +286,9 @@ QString appendLinkExtension(const QString &link)
 {
 	QString extension;
 
-#ifdef Q_OS_WIN32
+#if defined(Q_OS_WIN32)
 	extension = ".lnk";
-#elif Q_OS_MAC
+#elif defined(Q_OS_MAC)
 	// TODO
 #else
 	extension = ".desktop";