diff --git a/extensions/ffmpeg/src/main/jni/build_ffmpeg.sh b/extensions/ffmpeg/src/main/jni/build_ffmpeg.sh
index fef653bf6e..1583c1c964 100755
--- a/extensions/ffmpeg/src/main/jni/build_ffmpeg.sh
+++ b/extensions/ffmpeg/src/main/jni/build_ffmpeg.sh
@@ -14,6 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+set -eu
 
 FFMPEG_MODULE_PATH=$1
 NDK_PATH=$2
diff --git a/extensions/opus/src/main/jni/convert_android_asm.sh b/extensions/opus/src/main/jni/convert_android_asm.sh
index 9c79738439..48b141dca2 100755
--- a/extensions/opus/src/main/jni/convert_android_asm.sh
+++ b/extensions/opus/src/main/jni/convert_android_asm.sh
@@ -15,7 +15,7 @@
 # limitations under the License.
 #
 
-set -e
+set -eu
 ASM_CONVERTER="./libopus/celt/arm/arm2gnu.pl"
 
 if [[ ! -x "${ASM_CONVERTER}" ]]; then
diff --git a/extensions/vp9/src/main/jni/generate_libvpx_android_configs.sh b/extensions/vp9/src/main/jni/generate_libvpx_android_configs.sh
index 18f1dd5c69..b121886070 100755
--- a/extensions/vp9/src/main/jni/generate_libvpx_android_configs.sh
+++ b/extensions/vp9/src/main/jni/generate_libvpx_android_configs.sh
@@ -18,7 +18,7 @@
 # a bash script that generates the necessary config files for libvpx android ndk
 # builds.
 
-set -e
+set -eu
 
 if [ $# -ne 0 ]; then
   echo "Usage: ${0}"