diff --git a/lib/imap.c b/lib/imap.c
index 37fbc453f9..671f206d32 100644
--- a/lib/imap.c
+++ b/lib/imap.c
@@ -257,7 +257,7 @@ static CURLcode imap_sendf(struct connectdata *conn, const char *fmt, ...)
  * The returned string needs to be freed.
  *
  */
-static char* imap_atom(const char* str)
+static char *imap_atom(const char *str)
 {
   const char *p1;
   char *p2;