diff --git a/README.md b/README.md
index f8f6162..555b3d2 100644
--- a/README.md
+++ b/README.md
@@ -37,12 +37,12 @@ cc src/devices/datetime.c src/devices/system.c src/devices/file.c src/uxn.c -DND
 ## Devices
 
 - `00` system
-- `10` console(partial)
+- `10` console
 - `20` screen
 - `30` audio(missing)
 - `70` midi(missing)
 - `80` controller
-- `90` mouse(partial)
+- `90` mouse
 - `a0` file
 - `c0` datetime
 
diff --git a/build.sh b/build.sh
index 7585659..6956bfe 100755
--- a/build.sh
+++ b/build.sh
@@ -32,4 +32,4 @@ bin/uxncli etc/drifblim.rom etc/polycat.tal && mv etc/polycat.rom bin/
 echo "Running.."
 bin/uxn11 bin/polycat.rom
 
-echo "Done."
\ No newline at end of file
+echo "Done."
diff --git a/src/uxn11.c b/src/uxn11.c
index 4123405..8207d33 100644
--- a/src/uxn11.c
+++ b/src/uxn11.c
@@ -148,7 +148,12 @@ processEvent(Uxn *u)
 	} break;
 	case ButtonPress: {
 		XButtonPressedEvent *e = (XButtonPressedEvent *)&ev;
-		mouse_down(u, &u->dev[0x90], 0x1 << (e->button - 1));
+		if(e->button == 4)
+			mouse_scroll(u, &u->dev[0x90], 0, 1);
+		else if(e->button == 5)
+			mouse_scroll(u, &u->dev[0x90], 0, -1);
+		else
+			mouse_down(u, &u->dev[0x90], 0x1 << (e->button - 1));
 	} break;
 	case ButtonRelease: {
 		XButtonPressedEvent *e = (XButtonPressedEvent *)&ev;