diff --git a/buildjdk.sh b/buildjdk.sh
index 94bd62d..881e957 100755
--- a/buildjdk.sh
+++ b/buildjdk.sh
@@ -7,9 +7,9 @@ export CUPS_DIR=$PWD/cups-2.2.4
 export CFLAGS+=" -DLE_STANDALONE -DANDROID" # -I$FREETYPE_DIR -I$CUPS_DI
 if [ "$TARGET_JDK" == "aarch32" ]
 then
-  export CFLAGS=" -O2"
+  export CFLAGS+=" -O2"
 else
-  export CFLAGS=" -O3"
+  export CFLAGS+=" -O3"
 fi
 
 # if [ "$TARGET_JDK" == "aarch32" ] || [ "$TARGET_JDK" == "aarch64" ]