diff --git a/include/xact3.h b/include/xact3.h
index 63eec707363..9b8f480829e 100644
--- a/include/xact3.h
+++ b/include/xact3.h
@@ -434,7 +434,7 @@ typedef struct XACT_NOTIFICATION
         XACT_NOTIFICATION_VARIABLE variable;
         XACT_NOTIFICATION_GUI gui;
         XACT_NOTIFICATION_WAVE wave;
-    } DUMMYUNIONNAME;
+    };
 } XACT_NOTIFICATION, *LPXACT_NOTIFICATION;
 typedef const XACT_NOTIFICATION *LPCXACT_NOTIFICATION;
 
diff --git a/include/xact3wb.h b/include/xact3wb.h
index 6d157a466f9..834b3e1ef54 100644
--- a/include/xact3wb.h
+++ b/include/xact3wb.h
@@ -121,7 +121,7 @@ typedef struct WAVEBANKENTRY
             DWORD Duration : 28;
         } DUMMYSTRUCTNAME;
         DWORD dwFlagsAndDuration;
-    } DUMMYUNIONNAME;
+    };
 
     WAVEBANKMINIWAVEFORMAT Format;
     WAVEBANKREGION PlayRegion;