diff --git a/run_once.sh b/run_once.sh
index 7badc3fe..d084847a 100644
--- a/run_once.sh
+++ b/run_once.sh
@@ -14,7 +14,7 @@ else
     run_name="${run_type}_${model}_${gpu_cnt}_gpu_${current_datetime}"
 fi
 
-output_dir ="./results/${run_name}"
+output_dir="./results/${run_name}"
 
 if [ ! -d "$output_dir" ]; then
     mkdir -p "$output_dir"