diff --git a/buildjdk.sh b/buildjdk.sh
index 937c07e..efe1ed4 100755
--- a/buildjdk.sh
+++ b/buildjdk.sh
@@ -4,8 +4,8 @@ set -e
 export FREETYPE_DIR=`pwd`/freetype-2.6.2/build_android-${TARGET_SHORT}
 export CUPS_DIR=`pwd`/cups-2.2.4
 
-export CFLAGS+="-I$CUPS_DIR"
-export CXXFLAGS+="-I$CUPS_DIR"
+export CFLAGS+="-I$CUPS_DIR -I/usr/include"
+export CXXFLAGS+="-I$CUPS_DIR -I/usr/include"
 
 # My system's JDK is too old (7.0), so we add an Oracle boot JDK.
 # Set "USE_SYSTEM_JDK_8=1" to use system jdk instead