diff --git a/src/ride/ride.c b/src/ride/ride.c
index 951ad6e659..10ea7cb8b1 100644
--- a/src/ride/ride.c
+++ b/src/ride/ride.c
@@ -702,9 +702,10 @@ static void ride_remove_peeps(int rideIndex)
 	ride->var_14D |= 4;
 }
 
-int sub_6C683D(int x, int y, int z, int direction, int type, int esi, int edi, int ebp)
+int sub_6C683D(int* x, int* y, int z, int direction, int type, int esi, int edi, int ebp)
 {
-	return RCT2_CALLPROC_X(0x006C683D, x, (direction << 8) | type, y, z, esi, edi, ebp)&0x100;
+	int ebx = (direction << 8) | type;
+	return RCT2_CALLFUNC_X(0x006C683D, x, &ebx, y, &z, &esi, &edi, &ebp)&0x100;
 }
 
 void sub_6C96C0()
@@ -716,16 +717,19 @@ void sub_6C9627()
 {
 	switch (RCT2_GLOBAL(0x00F440A6, uint8)) {
 	case 3:
+	{
+		int x = RCT2_GLOBAL(0x00F440A8, uint16), y = RCT2_GLOBAL(0x00F440AA, uint16);
 		sub_6C683D(
-			RCT2_GLOBAL(0x00F440A8, uint16),
-			RCT2_GLOBAL(0x00F440AA, uint16),
+			&x,
+			&y,
 			RCT2_GLOBAL(0x00F440AC, uint16),
 			RCT2_GLOBAL(0x00F440AE, uint8) & 3,
 			RCT2_GLOBAL(0x00F440AF, uint8),
 			0,
 			0,
 			1
-		);
+			); 
+	}
 		break;
 	case 6:
 	case 7:
@@ -893,7 +897,8 @@ int ride_modify(rct_map_element *mapElement, int x, int y)
 	z = mapElement->base_height * 8;
 	direction = mapElement->type & 3;
 	type = mapElement->properties.track.type;
-	if (sub_6C683D(x, y, z, direction, type, 0, 0, 0)) return 0;
+	
+	if (sub_6C683D(&x, &y, z, direction, type, 0, 0, 0)) return 0;
 
 	RCT2_GLOBAL(0x00F440A7, uint8) = rideIndex;
 	RCT2_GLOBAL(0x00F440A6, uint8) = 3;
diff --git a/src/ride/ride.h b/src/ride/ride.h
index 3394f1b5bd..c5ea1fa671 100644
--- a/src/ride/ride.h
+++ b/src/ride/ride.h
@@ -629,7 +629,7 @@ void ride_breakdown_add_news_item(int rideIndex);
 rct_peep *ride_find_closest_mechanic(rct_ride *ride, int forInspection);
 int sub_6CC3FB(int rideIndex);
 void sub_6C9627();
-int sub_6C683D(int x, int y, int z, int direction, int type, int esi, int edi, int ebp);
+int sub_6C683D(int* x, int* y, int z, int direction, int type, int esi, int edi, int ebp);
 void ride_set_map_tooltip(rct_map_element *mapElement);
 int ride_music_params_update(sint16 x, sint16 y, sint16 z, uint8 rideIndex, uint16 sampleRate, uint32 position, uint8 *tuneId);
 void ride_music_update_final();
diff --git a/src/windows/ride_construction.c b/src/windows/ride_construction.c
index 64907bd61b..7863f81f81 100644
--- a/src/windows/ride_construction.c
+++ b/src/windows/ride_construction.c
@@ -287,7 +287,7 @@ void window_construction_mouseup(){
 		window_construction_mouseup_demolish(w);
 		break;
 	case 32:
-		RCT2_CALLPROC_X(0x6C98AA, 0, 0, 0, widgetIndex, (int)w, 0, 0);
+		RCT2_CALLPROC_X(0x6C78AA, 0, 0, 0, widgetIndex, (int)w, 0, 0);
 		break;
 	case 29:
 		RCT2_CALLPROC_X(0x6C7802, 0, 0, 0, widgetIndex, (int)w, 0, 0);
@@ -318,7 +318,7 @@ void window_construction_mouseup_demolish(rct_window* w){
 			ecx = RCT2_GLOBAL(0xF440AA, uint16),
 			edx = RCT2_GLOBAL(0xF440AC, uint16);
 
-		sub_6C683D(eax, ecx, edx, RCT2_GLOBAL(0xF440AE, uint8), RCT2_GLOBAL(0xF440AF, uint8) & 0x3FF, 0, 0, 0);
+		sub_6C683D(&eax, &ecx, edx, RCT2_GLOBAL(0xF440AE, uint8), RCT2_GLOBAL(0xF440AF, uint8) & 0x3FF, 0, 0, 0);
 	}
 
 	int ride_id = RCT2_GLOBAL(0xF440A7, uint8);