diff --git a/tools/internal_ci/linux/grpc_e2e_performance_gke.sh b/tools/internal_ci/linux/grpc_e2e_performance_gke.sh
index 5b373c9270d61..f63f1a97dea9b 100755
--- a/tools/internal_ci/linux/grpc_e2e_performance_gke.sh
+++ b/tools/internal_ci/linux/grpc_e2e_performance_gke.sh
@@ -220,8 +220,8 @@ declare -a disabledTests8core=(
 declare -a disabledTests32core=()
 
 # Arguments to disable tests.
-regexArgs8core=(-r "$(disabledTestsRegex "${disabledTests8core[@]}")")
-regexArgs32core=(-r "$(disabledTestsRegex "${disabledTests32core[@]}")")
+regexArgs8core=(-r "$(disableTestsRegex "${disabledTests8core[@]}")")
+regexArgs32core=(-r "$(disableTestsRegex "${disabledTests32core[@]}")")
 
 buildConfigs "${WORKER_POOL_8CORE}" "${BIGQUERY_TABLE_8CORE}" "${configLangArgs8core[@]}" "${regexArgs8core[@]}"
 buildConfigs "${WORKER_POOL_32CORE}" "${BIGQUERY_TABLE_32CORE}" "${configLangArgs32core[@]}" "${regexArgs32core[@]}"
diff --git a/tools/internal_ci/linux/grpc_e2e_performance_gke_experiment.sh b/tools/internal_ci/linux/grpc_e2e_performance_gke_experiment.sh
index 64e8b9c6ce03c..7a121aa33d3df 100755
--- a/tools/internal_ci/linux/grpc_e2e_performance_gke_experiment.sh
+++ b/tools/internal_ci/linux/grpc_e2e_performance_gke_experiment.sh
@@ -215,8 +215,8 @@ declare -a disabledTests8core=(
 declare -a disabledTests32core=()
 
 # Arguments to disable tests.
-regexArgs8core=(-r "$(disabledTestsRegex "${disabledTests8core[@]}")")
-regexArgs32core=(-r "$(disabledTestsRegex "${disabledTests32core[@]}")")
+regexArgs8core=(-r "$(disableTestsRegex "${disabledTests8core[@]}")")
+regexArgs32core=(-r "$(disableTestsRegex "${disabledTests32core[@]}")")
 
 buildConfigs "${WORKER_POOL_8CORE}" "${BIGQUERY_TABLE_8CORE}" "${configLangArgs8core[@]}" "${regexArgs8core[@]}"
 buildConfigs "${WORKER_POOL_32CORE}" "${BIGQUERY_TABLE_32CORE}" "${configLangArgs32core[@]}" "${regexArgs32core[@]}"