diff --git a/reactos/w32api/include/d3dtypes.h b/reactos/w32api/include/d3dtypes.h
index 6670e71dbc9..cdc4b00c3f4 100644
--- a/reactos/w32api/include/d3dtypes.h
+++ b/reactos/w32api/include/d3dtypes.h
@@ -151,19 +151,19 @@ typedef struct _D3DCOLORVALUE {
         union {
                 D3DVALUE r;
                 D3DVALUE dvR;
-        } DUMMYUNIONNAME1;
+        };
         union {
                 D3DVALUE g;
                 D3DVALUE dvG;
-        } DUMMYUNIONNAME2;
+        };
         union {
                 D3DVALUE b;
                 D3DVALUE dvB;
-        } DUMMYUNIONNAME3;
+        };
         union {
                 D3DVALUE a;
                 D3DVALUE dvA;
-        } DUMMYUNIONNAME4;
+        };
 } D3DCOLORVALUE,*LPD3DCOLORVALUE;
 
 typedef struct _D3DRECT {