diff --git a/themes/rjorgenson/rjorgenson.theme.sh b/themes/rjorgenson/rjorgenson.theme.sh
index 4b5b5e9..8542989 100644
--- a/themes/rjorgenson/rjorgenson.theme.sh
+++ b/themes/rjorgenson/rjorgenson.theme.sh
@@ -44,7 +44,7 @@ is_vim_shell() {
     fi
 }
 
-function is_integer() { # helper function to make sure input is an integer
+is_integer() { # helper function to make sure input is an integer
     [ "$1" -eq "$1" ] > /dev/null 2>&1
     return $?
 }