diff --git a/box.cpp b/box.cpp
index d41a877..f69613a 100755
--- a/box.cpp
+++ b/box.cpp
@@ -71,6 +71,6 @@ namespace vb01{
 			indices[i] = i;
 		}
 
-		meshBase = MeshData(vertices, indices, 3 * numTris);
+		meshBase = MeshData(vertices, indices, numTris);
 	}
 }
diff --git a/quad.cpp b/quad.cpp
index 373ea18..5123b9e 100755
--- a/quad.cpp
+++ b/quad.cpp
@@ -65,6 +65,6 @@ namespace vb01{
 		vertices[4] = v5;
 		vertices[5] = v6;
 
-		meshBase = MeshData(vertices, indices, numTris * 3);
+		meshBase = MeshData(vertices, indices, numTris);
 	}
 }