diff --git a/src/spell.c b/src/spell.c
index 5a7720f7f3..2581a5ede9 100644
--- a/src/spell.c
+++ b/src/spell.c
@@ -3829,7 +3829,7 @@ spell_soundfold_wsal(slang_T *slang, char_u *inword, char_u *res)
 			    c = *ws;
 			if (strstr((char *)s, "^^") != NULL)
 			{
-			    if (c != NUL)
+			    if (c != NUL && reslen < MAXWLEN)
 				wres[reslen++] = c;
 			    mch_memmove(word, word + i + 1,
 				       sizeof(int) * (wordlen - (i + 1) + 1));
diff --git a/src/version.c b/src/version.c
index 5a9f50f6ee..95d4cc1a10 100644
--- a/src/version.c
+++ b/src/version.c
@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    903,
 /**/
     902,
 /**/