diff --git a/src/burn/devices/joyprocess.h b/src/burn/devices/joyprocess.h
index 733e9a506..03ec4577b 100644
--- a/src/burn/devices/joyprocess.h
+++ b/src/burn/devices/joyprocess.h
@@ -69,10 +69,10 @@ struct ButtonToggle {
 };
 
 // E-Z HoldCoin logic (see pgm_run.cpp, d_discoboy.cpp)
-template <int N>
+template <int N, typename T = UINT8>
 struct HoldCoin {
-	UINT8 prev[N];
-	UINT8 counter[N];
+	T prev[N];
+	T counter[N];
 
 	void reset() {
 		memset(&prev, 0, sizeof(prev));
@@ -84,7 +84,7 @@ struct HoldCoin {
 		SCAN_VAR(counter);
 	}
 
-	void check(UINT8 num, UINT8 &inp, UINT8 bit, UINT8 hold_count) {
+	void check(UINT8 num, T &inp, T bit, UINT8 hold_count) {
 		if ((prev[num] & bit) != (inp & bit) && (inp & bit) && !counter[num]) {
 			counter[num] = hold_count + 1;
 		}
@@ -98,7 +98,7 @@ struct HoldCoin {
 		}
 	}
 
-	void checklow(UINT8 num, UINT8 &inp, UINT8 bit, UINT8 hold_count) {
+	void checklow(UINT8 num, T &inp, T bit, UINT8 hold_count) {
 		if ((prev[num] & bit) != (inp & bit) && (~inp & bit) && !counter[num]) {
 			counter[num] = hold_count + 1;
 		}