diff --git a/pkg/healthcheck/reposize.go b/pkg/healthcheck/reposize.go
index b804b6e..ee61bba 100644
--- a/pkg/healthcheck/reposize.go
+++ b/pkg/healthcheck/reposize.go
@@ -33,7 +33,7 @@ func RepoSize(conf_size float64) error {
 			sum += size
 		}
 	}
-	if sum > int(conf_size*1024*1024) {
+	if sum > int(conf_size*1024) {
 		return fmt.Errorf("Repository larger than %f M. Please clean up or contact the teaching team.", conf_size)
 	}
 	return nil