diff --git a/conf/cheaha.config b/conf/cheaha.config
index 58963b5..ec79f10 100644
--- a/conf/cheaha.config
+++ b/conf/cheaha.config
@@ -9,7 +9,7 @@ params {
 }
 
 env {
-    TMPDIR="$USER"
+    TMPDIR="$scratch_dir"
     SINGULARITY_TMPDIR="$scratch_dir"
 }