diff --git a/include/boost/config/compiler/gcc.hpp b/include/boost/config/compiler/gcc.hpp
index 64adb981..f37159d2 100644
--- a/include/boost/config/compiler/gcc.hpp
+++ b/include/boost/config/compiler/gcc.hpp
@@ -183,7 +183,7 @@
 #endif
 
 // GCC 4.5 forbids declaration of defaulted functions in private or protected sections
-#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ <= 5) || !defined(__GXX_EXPERIMENTAL_CXX0X__)
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ == 5) || !defined(__GXX_EXPERIMENTAL_CXX0X__)
 #  define BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS
 #endif