diff --git a/config.def.h b/config.def.h
index bb29075..3cdcf26 100644
--- a/config.def.h
+++ b/config.def.h
@@ -31,10 +31,10 @@ static const Rule rules[] = {
 	 *	WM_CLASS(STRING) = instance, class
 	 *	WM_NAME(STRING) = title
 	 */
-	/* class      instance    title       tags mask     isfloating   isterminal noswallow monitor */
-	{ "Gimp",     NULL,       NULL,       0,            1,           0,         0,        -1 },
-	{ "Firefox",  NULL,       NULL,       1 << 8,       0,           0,         0,        -1 },
-	{ "st",       NULL,       NULL,       0,            0,           1,         1,        -1 },
+	/* class      instance    title       tags mask     isfloating   isterminal noswallow ignoretransient monitor */
+	{ "Gimp",     NULL,       NULL,       0,            1,           0,         0,        0,              -1 },
+	{ "Firefox",  NULL,       NULL,       1 << 8,       0,           0,         0,        0,              -1 },
+	{ "st",       NULL,       NULL,       0,            0,           1,         1,        0,              -1 },
 };
 
 /* layout(s) */