diff --git a/src/world/map.c b/src/world/map.c
index 43ee97ee1f..eaafe7ffd4 100644
--- a/src/world/map.c
+++ b/src/world/map.c
@@ -1751,7 +1751,7 @@ money32 map_set_land_ownership(uint8 flags, sint16 x1, sint16 y1, sint16 x2, sin
 
 	// Clamp to maximum addressable element to prevent long loop spamming the log
 	x1 = clamp(0, x1, RCT2_GLOBAL(RCT2_ADDRESS_MAP_SIZE_UNITS, sint16));
-	y1 = clamp(0, x1, RCT2_GLOBAL(RCT2_ADDRESS_MAP_SIZE_UNITS, sint16));
+	y1 = clamp(0, y1, RCT2_GLOBAL(RCT2_ADDRESS_MAP_SIZE_UNITS, sint16));
 	x2 = min(x2, RCT2_GLOBAL(RCT2_ADDRESS_MAP_SIZE_UNITS, sint16));
 	y2 = min(y2, RCT2_GLOBAL(RCT2_ADDRESS_MAP_SIZE_UNITS, sint16));
 	for (sint16 y = y1; y <= y2; y += 32) {