diff --git a/pd/src/g_magicglass.c b/pd/src/g_magicglass.c
index 1c62f59fbacbd3a1229cf9d056c85a502ceba70d..362b2a5241c01f1ca2569b04ff4ec296ae2fa05d 100644
--- a/pd/src/g_magicglass.c
+++ b/pd/src/g_magicglass.c
@@ -400,6 +400,7 @@ void magicGlass_free(t_magicGlass *x)
 	//fprintf(stderr,"magicglass_free\n");
     x->x_dspOn = 0;
     clock_free(x->x_clearClock);
+	clock_free(x->x_flashClock);
 }
 
 void magicGlass_setup(void)