diff --git a/utils/docker/valid-branches.sh b/utils/docker/valid-branches.sh
index 1f979583f7197932e17f15566b64e55cb9c4e0f2..b111c2a3d51db29acfa0b92ce3844fd3824e0af7 100755
--- a/utils/docker/valid-branches.sh
+++ b/utils/docker/valid-branches.sh
@@ -8,4 +8,5 @@ declare -A TARGET_BRANCHES=(		\
 		["stable-1.6"]="v1.6"	\
 		["stable-1.7"]="v1.7"	\
 		["stable-1.8"]="v1.8"	\
+		["stable-1.9"]="v1.9"	\
 	)