diff --git a/strbuf.h b/strbuf.h
index 4559035c47..6708cef0f9 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -340,10 +340,10 @@ extern void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap);
 
 /**
  * Add the time specified by `tm`, as formatted by `strftime`.
- * `tz_name` is used to expand %Z internally unless it's NULL.
  * `tz_offset` is in decimal hhmm format, e.g. -600 means six hours west
  * of Greenwich, and it's used to expand %z internally.  However, tokens
  * with modifiers (e.g. %Ez) are passed to `strftime`.
+ * `tz_name` is used to expand %Z internally unless it's NULL.
  */
 extern void strbuf_addftime(struct strbuf *sb, const char *fmt,
 			    const struct tm *tm, int tz_offset,