diff --git a/src/php/bin/run_all_docker_images.sh b/src/php/bin/run_all_docker_images.sh
index 0882ecc58f9..5859d08fe2a 100755
--- a/src/php/bin/run_all_docker_images.sh
+++ b/src/php/bin/run_all_docker_images.sh
@@ -16,7 +16,7 @@
 set -e
 cd $(dirname $0)/../../..
 
-ALL_IMAGES=( grpc-ext grpc-src alpine php5 php-src php-future php-zts
+ALL_IMAGES=( grpc-ext grpc-src alpine centos7 php5 php-src php-future php-zts
              fork-support )
 
 if [[ "$1" == "--cmds" ]]; then