diff --git a/misc/rmexpfiles.sh b/misc/rmexpfiles.sh
index 2ba10aab..881f44f8 100644
--- a/misc/rmexpfiles.sh
+++ b/misc/rmexpfiles.sh
@@ -8,7 +8,7 @@ duration=$2
 find $filepath -maxdepth 1 -type f -name "*[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]*" -printf "%f\n" | while read filename; do
     datestr=$(echo "$filename" | grep -oE '[0-9]{8}')
     filedate=$(date -d "$datestr" +%s)
-    sevendaysago=$(date -d "$duration days ago' +%s)
+    sevendaysago=$(date -d "$duration days ago" +%s)
     if [ "$filedate" -lt "$sevendaysago" ]; then
         rm -f "$filepath/$filename"
         echo "rm file: $filename"