diff --git a/packages/toolchain/devel/eglibc/build b/packages/toolchain/devel/eglibc/build
index 75b1371da9..e8a2776884 100755
--- a/packages/toolchain/devel/eglibc/build
+++ b/packages/toolchain/devel/eglibc/build
@@ -14,7 +14,7 @@ $SCRIPTS/build gcc-core
 
 # Filter out some problematic CFLAGS
   CFLAGS=`echo $CFLAGS | sed -e "s|-ffast-math||"`
-  CFLAGS=`echo $CFLAGS | sed -e "s|-Os|-O3|"`
+  CFLAGS=`echo $CFLAGS | sed -e "s|-Os|-O2|"`
 
 # set some CFLAGS we need
   CFLAGS="$CFLAGS -g -fno-stack-protector"