diff --git a/engines/tsage/core.cpp b/engines/tsage/core.cpp
index 424df164b23..e703b714b2d 100644
--- a/engines/tsage/core.cpp
+++ b/engines/tsage/core.cpp
@@ -860,7 +860,7 @@ void PlayerMover::doStepsOfNpcMovement(const Common::Point &srcPos, const Common
 int PlayerMover::calculateRestOfRoute(int *routeList, int srcRegion, int destRegion, bool &foundRoute) {
 	// Make a copy of the provided route. The first entry is the size.
 	int tempList[REGION_LIST_SIZE + 1];
-	memset(tempList, 0, REGION_LIST_SIZE + 1);
+	memset(tempList, 0, sizeof(tempList));
 
 	foundRoute = false;
 	for (int idx = 0; idx <= *routeList; ++idx)