diff --git a/src/spellsuggest.c b/src/spellsuggest.c
index e1c303a..ecc0a74 100644
--- a/src/spellsuggest.c
+++ b/src/spellsuggest.c
@@ -2175,6 +2175,13 @@
 	    // - Skip the byte if it's equal to the byte in the word,
 	    //   accepting that byte is always better.
 	    n += sp->ts_curi++;
+
+	    // break out, if we would be accessing byts buffer out of bounds
+	    if (byts == slang->sl_fbyts && n >= slang->sl_fbyts_len)
+	    {
+		got_int = TRUE;
+		break;
+	    }
 	    c = byts[n];
 	    if (soundfold && sp->ts_twordlen == 0 && c == '*')
 		// Inserting a vowel at the start of a word counts less,