diff --git a/kernel/power/isamax.c b/kernel/power/isamax.c
index d37fb5917..6f2f70ae9 100644
--- a/kernel/power/isamax.c
+++ b/kernel/power/isamax.c
@@ -1,4 +1,4 @@
-#if (( defined(__GNUC__)  && __GNUC__   < 6 )
+#if ( defined(__GNUC__)  && __GNUC__   < 6 )
 #pragma GCC optimize "O0"
 #endif
 /***************************************************************************