diff --git a/include/CDynamicMeshBuffer.h b/include/CDynamicMeshBuffer.h
index 7defeb1c..73f8b425 100644
--- a/include/CDynamicMeshBuffer.h
+++ b/include/CDynamicMeshBuffer.h
@@ -128,7 +128,7 @@ namespace scene
 
 			const u32 vertexCount = getVertexCount();
 
-			VertexBuffer->reallocate(vertexCount+numVertices);
+			VertexBuffer->reallocate(vertexCount+numVertices, false);
 			switch ( vertexType )
 			{
 				case video::EVT_STANDARD:
@@ -154,7 +154,7 @@ namespace scene
 					break;
 			}
 
-			IndexBuffer->reallocate(getIndexCount()+numIndices);
+			IndexBuffer->reallocate(getIndexCount()+numIndices, false);
 			switch ( indexType )
 			{
 				case video::EIT_16BIT:
diff --git a/include/CMeshBuffer.h b/include/CMeshBuffer.h
index 531fcf0e..90893761 100644
--- a/include/CMeshBuffer.h
+++ b/include/CMeshBuffer.h
@@ -201,14 +201,14 @@ namespace scene
 			const u32 vertexCount = getVertexCount();
 			u32 i;
 
-			Vertices.reallocate(vertexCount+numVertices);
+			Vertices.reallocate(vertexCount+numVertices, false);
 			for (i=0; i<numVertices; ++i)
 			{
 				Vertices.push_back(static_cast<const T*>(vertices)[i]);
 				BoundingBox.addInternalPoint(static_cast<const T*>(vertices)[i].Pos);
 			}
 
-			Indices.reallocate(getIndexCount()+numIndices);
+			Indices.reallocate(getIndexCount()+numIndices, false);
 			for (i=0; i<numIndices; ++i)
 			{
 				Indices.push_back(indices[i]+vertexCount);