diff --git a/.circleci/config.yml b/.circleci/config.yml
index 0ff626644d..b40429231c 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -116,7 +116,7 @@ jobs:
             # TODO: https://gui.dockstore.org/${CIRCLE_TAG:-$CIRCLE_BRANCH}-$(echo $CIRCLE_SHA1 | cut -c -7) can probably be made into a bash/circle-ci variable.
             - run:
                 name: Swap for CDN paths
-                command: bash -i -c "find src \( -iname '*.html' -o -iname '*.ts' -o -iname '*.json' \) -exec sed -i 's~\.\./assets/~https://gui\.dockstore\.org/${CIRCLE_TAG:-$CIRCLE_BRANCH}-$(echo $CIRCLE_SHA1 | cut -c -7)/assets/~g' {} +"
+                command: bash -i -c "find src \( -iname '*.html' -o -iname '*.ts' -o -iname '*.json' \) -exec sed -i 's~\(\.\./\)\+assets/~https://gui\.dockstore\.org/${CIRCLE_TAG:-$CIRCLE_BRANCH}-$(echo $CIRCLE_SHA1 | cut -c -7)/assets/~g' {} +"
             - run:
                 name: Build
                 command: bash -i -c 'npm run build.prod -- --deploy-url https://gui.dockstore.org/${CIRCLE_TAG:-$CIRCLE_BRANCH}-$(echo $CIRCLE_SHA1 | cut -c -7)/'