diff --git a/src/map.c b/src/map.c
index 74fc60c..1b2660f 100644
--- a/src/map.c
+++ b/src/map.c
@@ -1924,7 +1924,7 @@
     save_name = sourcing_name;
     sourcing_name = (char_u *)"mappings"; // avoids giving error messages
 
-    // This this once for each buffer, and then once for global
+    // Do this once for each buffer, and then once for global
     // mappings/abbreviations with bp == NULL
     for (bp = firstbuf; ; bp = bp->b_next)
     {