diff --git a/scripts/config.sh b/scripts/config.sh
index db8b799..f9bb7e3 100755
--- a/scripts/config.sh
+++ b/scripts/config.sh
@@ -346,16 +346,16 @@ function isGraded {
 
 # $1 = the grade file
 function getGrade {
-    head -n 1 "$1" | cut -d'/' -f1 | sed 's/ *//g'
+    head -n 1 "$1" | cut -d'/' -f1 | sed 's/ *//g' | sed 's/[^[:digit:].]//g'
     #head -n 1 "$1" | sed 's/\// /' | awk '{print $1;}'
 }
 
 # $1 = the grade file
 function getOutOf {
     if isGraded $1; then
-        head -n 1 "$1" | sed 's/\// /' | awk '{print $2;}'
+        head -n 1 "$1" | sed 's/\// /' | awk '{print $2;}' | sed 's/[^[:digit:].]//g'
     else
-        head -n 1 "$1" | sed 's/\// /' | awk '{print $1;}'
+        head -n 1 "$1" | sed 's/\// /' | awk '{print $1;}' | sed 's/[^[:digit:].]//g'
     fi
 }