diff --git a/src/device/isapnp.c b/src/device/isapnp.c
index 62abb3202..69da4ca13 100644
--- a/src/device/isapnp.c
+++ b/src/device/isapnp.c
@@ -53,7 +53,7 @@ static const uint8_t pnp_init_key[32] = { 0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x
 					  0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x39 };
 static const device_t isapnp_device;
 
-#define ENABLE_ISAPNP_LOG 1
+
 #ifdef ENABLE_ISAPNP_LOG
 int isapnp_do_log = ENABLE_ISAPNP_LOG;
 
diff --git a/src/game/gameport.c b/src/game/gameport.c
index d33efb897..ce9e4b086 100644
--- a/src/game/gameport.c
+++ b/src/game/gameport.c
@@ -272,6 +272,7 @@ timer_over(void *priv)
 
     axis->joystick->state &= ~(1 << axis->axis_nr);
 
+    /* Notify the joystick when the first axis' period is finished. */
     if (axis == &axis->joystick->axis[0])
 	axis->joystick->intf->a0_over(axis->joystick->dat);
 }