1 files changed, 6 insertions, 4 deletions
diff --git a/src/tools/mmaps_generator/MapBuilder.cpp b/src/tools/mmaps_generator/MapBuilder.cpp
index ff2f72f3534..0c41be65cf7 100644
--- a/src/tools/mmaps_generator/MapBuilder.cpp
+++ b/src/tools/mmaps_generator/MapBuilder.cpp
@@ -215,10 +215,12 @@ namespace MMAP
     /**************************************************************************/
     void MapBuilder::getGridBounds(uint32 mapID, uint32 &minX, uint32 &minY, uint32 &maxX, uint32 &maxY) const
     {
-        maxX = std::numeric_limits<uint32>::max();
-        maxY = std::numeric_limits<uint32>::max();
-        minX = 0;
-        minY = 0;
+        // min and max are initialized to invalid values so the caller iterating the [min, max] range
+        // will never enter the loop unless valid min/max values are found
+        maxX = 0;
+        maxY = 0;
+        minX = std::numeric_limits<uint32>::max();
+        minY = std::numeric_limits<uint32>::max();
 
         float bmin[3] = { 0, 0, 0 };
         float bmax[3] = { 0, 0, 0 };