diff --git a/scripts/scheduler/entrypoint.sh b/scripts/scheduler/entrypoint.sh
index fb89a7b..a3de28d 100644
--- a/scripts/scheduler/entrypoint.sh
+++ b/scripts/scheduler/entrypoint.sh
@@ -456,7 +456,7 @@ check_update() {
 
     # Check whether repository url is available
     #CURL_CHECK="curl -m 5 -s -o /dev/null -w "%{http_code}" https://$REPOSITORY_URL/v2/"
-    CURL_CHECK='curl -m 5 -s -o /dev/null -I "'$TOKEN_HEADER'" -w "%{http_code}" '"$REMOTE_URL"
+    CURL_CHECK='curl -m 5 -s -o /dev/null -I '"$TOKEN_HEADER"' -w "%{http_code}" '"$REMOTE_URL"
     CURL_CHECK_CODE=$(eval $CURL_CHECK)
 
     # if valid accessible url
@@ -465,7 +465,7 @@ check_update() {
 
         #digest=$(curl --silent -H "Accept: application/vnd.docker.distribution.manifest.v2+json" "$REMOTE_URL" | jq -r '.config.digest');
         # Digest for the whole manifest, which includes all architectures.
-    	CURL_DIGEST=$(echo 'curl -s -I "'$TOKEN_HEADER'" -H "Accept: application/vnd.oci.image.index.v1+json" "'$REMOTE_URL'" | grep -i Docker-Content-Digest' | cut -d ' ' -f2 | tr -d '\r\n')
+    	CURL_DIGEST=$(echo 'curl -s -I '"$TOKEN_HEADER"' -H "Accept: application/vnd.oci.image.index.v1+json" "'$REMOTE_URL'" | grep -i Docker-Content-Digest' | cut -d ' ' -f2 | tr -d '\r\n')
         digest=$(eval $CURL_DIGEST)
 
         #debug "docker images -q --no-trunc $REPOSITORY_URL/$TEMP_IMAGE:$TEMP_VERSION";