diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 980aa469..14201571 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -103,7 +103,7 @@ jobs:
           cd index/server
           export GOPATH=$(go env GOPATH)
           go install github.com/deepmap/oapi-codegen/cmd/oapi-codegen@v1.12.4
-          ENABLE_HTTP2="false" bash ./build.sh
+          bash ./build.sh
 
       - name: Test index server
         run: cd index/server && go test ./... -coverprofile cover.out
diff --git a/build_registry.sh b/build_registry.sh
index 633aef44..0c68fa25 100755
--- a/build_registry.sh
+++ b/build_registry.sh
@@ -28,7 +28,7 @@ BASE_DIR=$(dirname $0)
 . ${BASE_DIR}/setenv.sh
 
 # Build the index server base image
-. ${BASE_DIR}/index/server/build.sh
+ENABLE_HTTP2="false" . ${BASE_DIR}/index/server/build.sh
 
 # Build the test devfile registry image
 docker build -t devfile-index:latest -f ${BASE_DIR}/.ci/Dockerfile ${BASE_DIR}