diff --git a/src/gba/gba-sio.c b/src/gba/gba-sio.c
index c1cceb1d9..018a4a28f 100644
--- a/src/gba/gba-sio.c
+++ b/src/gba/gba-sio.c
@@ -42,6 +42,9 @@ void GBASIOInit(struct GBASIO* sio) {
 	sio->siocnt = 0;
 	sio->mode = -1;
 	sio->activeDriver = 0;
+	sio->drivers.normal = 0;
+	sio->drivers.multiplayer = 0;
+	sio->drivers.joybus = 0;
 	_switchMode(sio);
 }
 
@@ -55,15 +58,9 @@ void GBASIODeinit(struct GBASIO* sio) {
 }
 
 void GBASIOSetDriverSet(struct GBASIO* sio, struct GBASIODriverSet* drivers) {
-	if (drivers->normal) {
-		GBASIOSetDriver(sio, drivers->normal, SIO_NORMAL_8);
-	}
-	if (drivers->multiplayer) {
-		GBASIOSetDriver(sio, drivers->multiplayer, SIO_MULTI);
-	}
-	if (drivers->joybus) {
-		GBASIOSetDriver(sio, drivers->multiplayer, SIO_JOYBUS);
-	}
+	GBASIOSetDriver(sio, drivers->normal, SIO_NORMAL_8);
+	GBASIOSetDriver(sio, drivers->multiplayer, SIO_MULTI);
+	GBASIOSetDriver(sio, drivers->joybus, SIO_JOYBUS);
 }
 
 void GBASIOSetDriver(struct GBASIO* sio, struct GBASIODriver* driver, enum GBASIOMode mode) {