diff --git a/server/run.sh b/server/run.sh
index e3378de35..77a22baac 100755
--- a/server/run.sh
+++ b/server/run.sh
@@ -4,6 +4,7 @@ if cargo watch --help &> /dev/null; then
     TRIGGER="./in/datasets_len.txt"
 
     if [ ! -f "$TRIGGER" ]; then
+        mkdir "./in"
         echo "0" > $TRIGGER
     fi