diff --git a/LCS/Common/src/Exception.cc b/LCS/Common/src/Exception.cc
index bd9e77475b004fed4be7b0ab95b572d0a7c3d559..d693264304149a1f213235ac7b8fbb0bba687c7e 100644
--- a/LCS/Common/src/Exception.cc
+++ b/LCS/Common/src/Exception.cc
@@ -27,7 +27,7 @@
 #include <cstdlib>    // for abort()
 #include <iostream>
 
-#ifndef __GNUG_
+#ifndef __GNUG__
 # include <cstdio>    // for fputs()
 # include <typeinfo>  // for typeid()
 #endif