diff --git a/RELEASING b/RELEASING
index a1edceba9..60e3e9e41 100644
--- a/RELEASING
+++ b/RELEASING
@@ -2,7 +2,9 @@ Here are the steps to follow to create a new cairo release:
 
 1) Ensure that there are no local, uncommitted/unpushed
    modifications. You're probably in a good state if both "git diff
-   HEAD" and "git log master..origin/master" give no output.
+   HEAD" and "git log master..origin/master" give no output.  Also make
+   sure you have libglib2.0-doc installed (else you'll get excessive
+   gtk-doc cross reference warnings in the next step).
 
 2) Verify that the code passes "make distcheck"