diff --git a/clisp.spec b/clisp.spec
index 135ffb2..011824c 100644
--- a/clisp.spec
+++ b/clisp.spec
@@ -302,7 +302,7 @@ tail -q -s 0.5 -f $SCREENLOG & pid=$!
     --with-module=postgresql	\
     --config			\
     CC="${CC}"			\
-    CFLAGS="${MYCFLAGS} -Wa,--noexecstack" \
+    CFLAGS="%{optflags}"	\
     LDFLAGS="%{ldflags}"
 
 %_make -C build lispbibl.h