diff --git a/reactos/lib/shell32/shfldr_mycomp.c b/reactos/lib/shell32/shfldr_mycomp.c
index 59db48cb461..c149718f880 100644
--- a/reactos/lib/shell32/shfldr_mycomp.c
+++ b/reactos/lib/shell32/shfldr_mycomp.c
@@ -627,20 +627,20 @@ static HRESULT WINAPI ISF_MyComputer_fnGetDetailsOf (IShellFolder2 * iface, LPCI
 	    hr = IShellFolder_GetDisplayNameOf (iface, pidl, SHGDN_NORMAL | SHGDN_INFOLDER, &psd->str);
 	    break;
 	case 1:		/* type */
-	    _ILGetFileType (pidl, psd->str.u.cStr, MAX_PATH);
+	    _ILGetFileType (pidl, psd->str.DUMMYUNIONNAME.cStr, MAX_PATH);
 	    break;
 	case 2:		/* total size */
 	    if (_ILIsDrive (pidl)) {
 		_ILSimpleGetText (pidl, szPath, MAX_PATH);
 		GetDiskFreeSpaceExA (szPath, NULL, &ulBytes, NULL);
-		StrFormatByteSizeA (ulBytes.u.LowPart, psd->str.u.cStr, MAX_PATH);
+		StrFormatByteSizeA (ulBytes.DUMMYUNIONNAME.LowPart, psd->str.u.cStr, MAX_PATH);
 	    }
 	    break;
 	case 3:		/* free size */
 	    if (_ILIsDrive (pidl)) {
 		_ILSimpleGetText (pidl, szPath, MAX_PATH);
 		GetDiskFreeSpaceExA (szPath, &ulBytes, NULL, NULL);
-		StrFormatByteSizeA (ulBytes.u.LowPart, psd->str.u.cStr, MAX_PATH);
+		StrFormatByteSizeA (ulBytes.DUMMYUNIONNAME.LowPart, psd->str.DUMMYUNIONNAME.cStr, MAX_PATH);
 	    }
 	    break;
 	}