diff --git a/libctru/source/gfx.c b/libctru/source/gfx.c
index f0b68a3..d99d420 100644
--- a/libctru/source/gfx.c
+++ b/libctru/source/gfx.c
@@ -187,7 +187,7 @@ void gfxExit()
 	screenFree(gfxTopLeftFramebuffers[0]);
 
 	//unmap GSP shared mem
-	svcUnmapMemoryBlock(gspSharedMemHandle, 0x10002000);
+	svcUnmapMemoryBlock(gspSharedMemHandle, (u32)gfxSharedMemory);
 
 	GSPGPU_UnregisterInterruptRelayQueue(NULL);