diff --git a/src/rsn_supp/wpa.c b/src/rsn_supp/wpa.c
index 8e95cbdc0..e0c913074 100644
--- a/src/rsn_supp/wpa.c
+++ b/src/rsn_supp/wpa.c
@@ -1007,7 +1007,7 @@ static int wpa_supplicant_install_igtk(struct wpa_sm *sm,
 	}
 
 	wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
-		"WPA: IGTK keyid %d pn %02x%02x%02x%02x%02x%02x",
+		"WPA: IGTK keyid %d pn " COMPACT_MACSTR,
 		keyidx, MAC2STR(igtk->pn));
 	wpa_hexdump_key(MSG_DEBUG, "WPA: IGTK", igtk->igtk, len);
 	if (keyidx > 4095) {