diff --git a/gfx/drivers/d3d8.c b/gfx/drivers/d3d8.c
index 67e7aca4df..c614b97088 100644
--- a/gfx/drivers/d3d8.c
+++ b/gfx/drivers/d3d8.c
@@ -15,6 +15,8 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define CINTERFACE
+
 #ifdef _XBOX
 #include <xtl.h>
 #include <xgraphics.h>
diff --git a/gfx/drivers/d3d9.c b/gfx/drivers/d3d9.c
index b33ef22a45..2d1b4a0447 100644
--- a/gfx/drivers/d3d9.c
+++ b/gfx/drivers/d3d9.c
@@ -15,6 +15,8 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define CINTERFACE
+
 #ifdef _XBOX
 #include <xtl.h>
 #include <xgraphics.h>
diff --git a/gfx/drivers_font/d3d_w32_font.c b/gfx/drivers_font/d3d_w32_font.c
index 6d329cef82..3b2824e12e 100644
--- a/gfx/drivers_font/d3d_w32_font.c
+++ b/gfx/drivers_font/d3d_w32_font.c
@@ -14,6 +14,8 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define CINTERFACE
+
 #include <tchar.h>
 
 #include <compat/strl.h>
diff --git a/gfx/drivers_renderchain/d3d9_cg_renderchain.c b/gfx/drivers_renderchain/d3d9_cg_renderchain.c
index d3406b3307..3dc5e9a366 100644
--- a/gfx/drivers_renderchain/d3d9_cg_renderchain.c
+++ b/gfx/drivers_renderchain/d3d9_cg_renderchain.c
@@ -14,6 +14,8 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define CINTERFACE
+
 #include <string.h>
 #include <math.h>
 
diff --git a/gfx/drivers_renderchain/d3d9_hlsl_renderchain.c b/gfx/drivers_renderchain/d3d9_hlsl_renderchain.c
index 8e5d2e7aac..ab3eaacc3e 100644
--- a/gfx/drivers_renderchain/d3d9_hlsl_renderchain.c
+++ b/gfx/drivers_renderchain/d3d9_hlsl_renderchain.c
@@ -14,6 +14,8 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define CINTERFACE
+
 #include <string.h>
 #include <retro_inline.h>
 #include <retro_math.h>
diff --git a/gfx/drivers_shader/shader_hlsl.c b/gfx/drivers_shader/shader_hlsl.c
index 1e86acc584..2b73a92f89 100644
--- a/gfx/drivers_shader/shader_hlsl.c
+++ b/gfx/drivers_shader/shader_hlsl.c
@@ -14,6 +14,8 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define CINTERFACE
+
 #include <retro_math.h>
 #include <compat/strl.h>
 #include <string/stdstring.h>
diff --git a/menu/drivers_display/menu_display_d3d8.c b/menu/drivers_display/menu_display_d3d8.c
index 208f6b566d..c71270d004 100644
--- a/menu/drivers_display/menu_display_d3d8.c
+++ b/menu/drivers_display/menu_display_d3d8.c
@@ -13,6 +13,8 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define CINTERFACE
+
 #include <retro_miscellaneous.h>
 
 #include <gfx/math/matrix_4x4.h>
diff --git a/menu/drivers_display/menu_display_d3d9.c b/menu/drivers_display/menu_display_d3d9.c
index cb62c95972..cd83a8bce6 100644
--- a/menu/drivers_display/menu_display_d3d9.c
+++ b/menu/drivers_display/menu_display_d3d9.c
@@ -13,6 +13,8 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define CINTERFACE
+
 #include <retro_miscellaneous.h>
 
 #include <gfx/math/matrix_4x4.h>