diff --git a/src/main/iidxhook-util/config-gfx.c b/src/main/iidxhook-util/config-gfx.c
index 0f90cfe..02fbd6d 100644
--- a/src/main/iidxhook-util/config-gfx.c
+++ b/src/main/iidxhook-util/config-gfx.c
@@ -220,13 +220,13 @@ void iidxhook_config_gfx_get(struct iidxhook_config_gfx* config_gfx,
     }
 
     if (!strcmp(tmp, "none")) {
-        config_gfx->scale_back_buffer_filter = D3D9_BACK_BUFFER_SCALE_FILTER_NONE;
+        config_gfx->scale_back_buffer_filter = IIDXHOOK_UTIL_D3D9_BACK_BUFFER_SCALE_FILTER_NONE;
     } else if (!strcmp(tmp, "linear")) {
-        config_gfx->scale_back_buffer_filter = D3D9_BACK_BUFFER_SCALE_FILTER_LINEAR;
+        config_gfx->scale_back_buffer_filter = IIDXHOOK_UTIL_D3D9_BACK_BUFFER_SCALE_FILTER_LINEAR;
     } else if (!strcmp(tmp, "point")) {
-        config_gfx->scale_back_buffer_filter = D3D9_BACK_BUFFER_SCALE_FILTER_POINT;
+        config_gfx->scale_back_buffer_filter = IIDXHOOK_UTIL_D3D9_BACK_BUFFER_SCALE_FILTER_POINT;
     } else {
-        config_gfx->scale_back_buffer_filter = D3D9_BACK_BUFFER_SCALE_FILTER_NONE;
+        config_gfx->scale_back_buffer_filter = IIDXHOOK_UTIL_D3D9_BACK_BUFFER_SCALE_FILTER_NONE;
 
         log_warning("Invalid value for key '%s' specified, fallback "
             "to default '%s'", IIDXHOOK_CONFIG_GFX_SCALE_BACK_BUFFER_FILTER_KEY,
diff --git a/src/main/iidxhook-util/config-gfx.h b/src/main/iidxhook-util/config-gfx.h
index 370bb3e..c71895f 100644
--- a/src/main/iidxhook-util/config-gfx.h
+++ b/src/main/iidxhook-util/config-gfx.h
@@ -17,7 +17,7 @@ struct iidxhook_config_gfx {
     int32_t window_height;
     uint16_t scale_back_buffer_width;
     uint16_t scale_back_buffer_height;
-    enum d3d9_back_buffer_scale_filter scale_back_buffer_filter;
+    enum iidxhook_util_d3d9_back_buffer_scale_filter scale_back_buffer_filter;
 };
 
 void iidxhook_config_gfx_init(struct cconfig* config);
diff --git a/src/test/iidxhook-util/iidxhook-util-config-gfx-test.c b/src/test/iidxhook-util/iidxhook-util-config-gfx-test.c
index b2a5fb6..d107e92 100644
--- a/src/test/iidxhook-util/iidxhook-util-config-gfx-test.c
+++ b/src/test/iidxhook-util/iidxhook-util-config-gfx-test.c
@@ -27,7 +27,7 @@ static void test_config_gfx_defaults()
     check_bool_false(config_gfx.windowed);
     check_int_eq(config_gfx.scale_back_buffer_width, 0);
     check_int_eq(config_gfx.scale_back_buffer_height, 0);
-    check_int_eq(config_gfx.scale_back_buffer_width, D3D9_BACK_BUFFER_SCALE_FILTER_NONE);
+    check_int_eq(config_gfx.scale_back_buffer_width, IIDXHOOK_UTIL_D3D9_BACK_BUFFER_SCALE_FILTER_NONE);
 }
 
 static void test_config_gfx()
@@ -62,7 +62,7 @@ static void test_config_gfx()
     check_bool_true(config_gfx.windowed);
     check_int_eq(config_gfx.scale_back_buffer_width, 1920);
     check_int_eq(config_gfx.scale_back_buffer_height, 1080);
-    check_int_eq(config_gfx.scale_back_buffer_filter, D3D9_BACK_BUFFER_SCALE_FILTER_LINEAR);
+    check_int_eq(config_gfx.scale_back_buffer_filter, IIDXHOOK_UTIL_D3D9_BACK_BUFFER_SCALE_FILTER_LINEAR);
 }
 
 static void test_config_gfx_invalid_values()
@@ -97,7 +97,7 @@ static void test_config_gfx_invalid_values()
     check_bool_false(config_gfx.windowed);
     check_int_eq(config_gfx.scale_back_buffer_width, 0);
     check_int_eq(config_gfx.scale_back_buffer_height, 0);
-    check_int_eq(config_gfx.scale_back_buffer_width, D3D9_BACK_BUFFER_SCALE_FILTER_NONE);
+    check_int_eq(config_gfx.scale_back_buffer_width, IIDXHOOK_UTIL_D3D9_BACK_BUFFER_SCALE_FILTER_NONE);
 }
 
 TEST_MODULE_BEGIN("iidxhook-config-gfx")