diff --git a/libstdc++-v3/include/debug/safe_local_iterator.h b/libstdc++-v3/include/debug/safe_local_iterator.h
index b4da11d5ee13ac3d816c048f7ba2d1d9d01bf140..1766cb7e72aa0695368a44138edeb868c9bd0000 100644
--- a/libstdc++-v3/include/debug/safe_local_iterator.h
+++ b/libstdc++-v3/include/debug/safe_local_iterator.h
@@ -32,7 +32,7 @@
 #include <debug/safe_unordered_base.h>
 
 #define _GLIBCXX_DEBUG_VERIFY_OPERANDS(_Lhs, _Rhs) \
-  _GLIBCXX_DEBUG_VERIFY(!_Lhs._M_singular() && !_Rhs._M_singular()	\
+  _GLIBCXX_DEBUG_VERIFY((!_Lhs._M_singular() && !_Rhs._M_singular())	\
 			|| (_Lhs._M_value_initialized()			\
 			    && _Rhs._M_value_initialized()),		\
 			_M_message(__msg_iter_compare_bad)		\