diff --git a/gfx/d3d/render_chain_cg.cpp b/gfx/d3d/render_chain_cg.cpp
index 1aeab77b97..78e5ee67c7 100644
--- a/gfx/d3d/render_chain_cg.cpp
+++ b/gfx/d3d/render_chain_cg.cpp
@@ -18,7 +18,6 @@
 #include <string.h>
 #include <math.h>
 
-#include <string>
 #include <vector>
 
 #include <Cg/cg.h>