diff --git a/Documentation/gitformat-pack.txt b/Documentation/gitformat-pack.txt
index 0c1be2dbe8..4b7e6da1e7 100644
--- a/Documentation/gitformat-pack.txt
+++ b/Documentation/gitformat-pack.txt
@@ -390,7 +390,7 @@ CHUNK LOOKUP:
 CHUNK DATA:
 
 	Packfile Names (ID: {'P', 'N', 'A', 'M'})
-	    Stores the packfile names as concatenated, null-terminated strings.
+	    Stores the packfile names as concatenated, NUL-terminated strings.
 	    Packfiles must be listed in lexicographic order for fast lookups by
 	    name. This is the only chunk not guaranteed to be a multiple of four
 	    bytes in length, so should be the last chunk for alignment reasons.