diff --git a/src/client/mapblock_mesh.cpp b/src/client/mapblock_mesh.cpp
index 0a1619b3f..1020e35f5 100644
--- a/src/client/mapblock_mesh.cpp
+++ b/src/client/mapblock_mesh.cpp
@@ -888,7 +888,7 @@ static void updateFastFaceRow(
 	v3s16 p_corrected;
 	v3s16 face_dir_corrected;
 	u16 lights[4] = {0, 0, 0, 0};
-	u8 waving;
+	u8 waving = 0;
 	TileSpec tile;
 
 	// Get info of first tile