diff --git a/demo.c b/demo.c
index 4a96b64..df1627a 100644
--- a/demo.c
+++ b/demo.c
@@ -46,4 +46,6 @@ int main(int argc, char *argv[]) {
 
   termios.c_lflag = old_lflag;
   tcsetattr(0, TCSANOW, &termios);
+
+  termkey_free(tk);
 }
diff --git a/termkey.c b/termkey.c
index 411d958..2830f01 100644
--- a/termkey.c
+++ b/termkey.c
@@ -189,6 +189,15 @@ termkey_t *termkey_new(int fd, int flags)
   return termkey_new_full(fd, flags, 256, 50);
 }
 
+void termkey_free(termkey_t *tk)
+{
+  free(tk->buffer); tk->buffer = NULL;
+  free(tk->keynames); tk->keynames = NULL;
+  free(tk->csifuncs); tk->csifuncs = NULL;
+
+  free(tk);
+}
+
 void termkey_setwaittime(termkey_t *tk, int msec)
 {
   tk->waittime = msec;