diff --git a/jjb/pipeline/voltha/master/bbsim-tests.groovy b/jjb/pipeline/voltha/master/bbsim-tests.groovy
index 887c01b..c465ab3 100644
--- a/jjb/pipeline/voltha/master/bbsim-tests.groovy
+++ b/jjb/pipeline/voltha/master/bbsim-tests.groovy
@@ -428,7 +428,7 @@
       echo
 
       readarray -t logs < <(find . -name '*-combined.log' -print)
-      if [[ ${#logs[@]} -gt 0 ]]; then
+      if [[ \${\#logs[@]} -gt 0 ]]; then
           echo '** Bundle combined log'
           gzip "${logs[@]}"
           rm -f "${logs[@]}"
diff --git a/jjb/pipeline/voltha/voltha-2.12/bbsim-tests.groovy b/jjb/pipeline/voltha/voltha-2.12/bbsim-tests.groovy
index 974ad88..b114384 100644
--- a/jjb/pipeline/voltha/voltha-2.12/bbsim-tests.groovy
+++ b/jjb/pipeline/voltha/voltha-2.12/bbsim-tests.groovy
@@ -428,7 +428,7 @@
       echo
 
       readarray -t logs < <(find . -name '*-combined.log' -print)
-      if [[ ${#logs[@]} -gt 0 ]]; then
+      if [[ \${\#logs[@]} -gt 0 ]]; then
           echo '** Bundle combined log'
           gzip "${logs[@]}"
           rm -f "${logs[@]}"