diff --git a/dotfiles/lib/shellenv/functions.sh b/dotfiles/lib/shellenv/functions.sh
index 8590c42b..d5b1b77a 100644
--- a/dotfiles/lib/shellenv/functions.sh
+++ b/dotfiles/lib/shellenv/functions.sh
@@ -447,3 +447,7 @@ function jump_cd {
         cd $2
     fi
 }
+
+function source_if_exists {
+    test -r "$1" && source "$1"
+}