diff --git a/mem.md b/mem.md
index 173452d..69db14b 100644
--- a/mem.md
+++ b/mem.md
@@ -13,7 +13,7 @@ Variable | Meaning | Type | Default
 `refresh_timeout` | Refresh timeout seconds | int | 10
 `show_swap` | Show amount of used swap space? | boolean | false
 `show_total` | Show amout of total memory? | boolean | false
-`header` | Text to show before value | string | " Mem "
+`header` | Text to show before value | string | "Mem "
 `header_color` | Header color | string | `beautiful.fg_normal` or "#FFFFFF"
 `color` | Value color | string | `beautiful.fg_focus` or "#FFFFFF"
 `footer` | Text to show after value | string | "MB"