diff --git a/FAQ.md b/FAQ.md
index f75e2d3..546d313 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -6,6 +6,15 @@ Also, the older deprecated [vim-powerline][a] uses different font codes compared
 
 If you are using rxvt-unicode, try using an odd font size, 11, 13, 15 etc. in your .Xdefaults
 
+### The powerline font symbols are partially messed up.
+
+You are likely using the [fontconfig](https://powerline.readthedocs.org/en/latest/installation/linux.html#font-installation) method.  If that is the case, you need to override the space character like so:
+
+    if !exists('g:airline_symbols')
+      let g:airline_symbols = {}
+    endif
+    let g:airline_symbols.space = "\ua0"
+
 ### There is a pause when leaving insert mode
 
 You need to set `ttimeoutlen` to a low number; 50 is recommended.