diff --git a/.github/workflows/manual-deploy-ten-gateway-frontend.yml b/.github/workflows/manual-deploy-ten-gateway-frontend.yml
index f4a039ddc4..b267557b9f 100644
--- a/.github/workflows/manual-deploy-ten-gateway-frontend.yml
+++ b/.github/workflows/manual-deploy-ten-gateway-frontend.yml
@@ -61,8 +61,8 @@ jobs:
           echo "INSTANCE_PREFIX=$INSTANCE_PREFIX" >> $GITHUB_ENV
 
 
-          DNS_NAME_LABEL_GATEWAY_FE="${{ github.event.inputs.testnet_type }}-ten-gateway${INSTANCE_SUFFIX}"
-          IMAGE_NAME_GATEWAY_FE="${{ github.event.inputs.testnet_type }}-fe-ten-gateway${INSTANCE_SUFFIX}"
+          DNS_NAME_LABEL_GATEWAY_FE="${{ github.event.inputs.testnet_type }}-ten-gateway${INSTANCE_SUFFIX,,}"
+          IMAGE_NAME_GATEWAY_FE="${{ github.event.inputs.testnet_type }}-fe-ten-gateway${INSTANCE_SUFFIX,,}"
 
           echo "DNS_NAME_LABEL_GATEWAY_FE=$DNS_NAME_LABEL_GATEWAY_FE" >> $GITHUB_ENV
           echo "IMAGE_NAME_GATEWAY_FE=$IMAGE_NAME_GATEWAY_FE" >> $GITHUB_ENV