diff --git a/nx/source/nvidia/address_space.c b/nx/source/nvidia/address_space.c
index 7b35280e..cd5ddb13 100644
--- a/nx/source/nvidia/address_space.c
+++ b/nx/source/nvidia/address_space.c
@@ -44,7 +44,6 @@ Result nvAddressSpaceReserveFull(NvAddressSpace* a) {
 }
 
 Result nvAddressSpaceMapBuffer(NvAddressSpace* a, NvBuffer* buffer, NvBufferKind kind, iova_t* iova_out) {
-    // TODO: What is flag==4?
     return nvioctlNvhostAsGpu_MapBufferEx(
         a->fd, NvMapBufferFlags_IsCachable, kind, buffer->fd, 0x10000, 0, 0, 0, iova_out);
 }