fix spelling in comment
diff --git a/src/qcbor_encode.c b/src/qcbor_encode.c
index 59c420b..c93be05 100644
--- a/src/qcbor_encode.c
+++ b/src/qcbor_encode.c
@@ -545,7 +545,7 @@
     * save object code. It is very clear that pBufferForEncodedHead is
     * the correct size. If EncodedHead == NULLUsefulBufC then
     * UsefulOutBuf_InsertUsefulBuf() will do nothing so there is no
-    * security whole introduced.
+    * security hole introduced.
     */
    UsefulOutBuf_InsertUsefulBuf(&(me->OutBuf),
                                 EncodedHead,