[ci] fix code to check if the overlay is valid

1 files changed, 1 insertions, 1 deletions

diff --git a/dev/ci/ci-basic-overlay.sh b/dev/ci/ci-basic-overlay.sh
index be819616e2..dd683c96a9 100755
--- a/dev/ci/ci-basic-overlay.sh
+++ b/dev/ci/ci-basic-overlay.sh
@@ -8,7 +8,7 @@ declare -a projects # the list of project repos that can be be overlayed
 # checks if the given argument is a known project
 function is_in_projects {
     local rc=1
-    for x in ${!projects[@]}; do
+    for x in ${projects[@]}; do
       if [ "$1" = "$x" ]; then rc=0; fi;
     done
     return rc