diff --git a/manifest b/manifest
index 416ccf1043..9c7ce9a588 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Remove\ssuperfluous\soption\sto\sTcl\s'lsort'\sin\sthe\svtabH\stest\sfile.
-D 2017-01-18T22:19:01.508
+C In\sthe\s'windirent'\stest\smodule,\suse\sa\smacro\sfor\sthe\shidden/system\sattribute\schecking.
+D 2017-01-18T22:47:42.937
 F Makefile.in 41bd4cad981487345c4a84081074bcdb876e4b2e
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc b8ca53350ae545e3562403d5da2a69cec79308da
@@ -446,8 +446,8 @@ F src/test_tclvar.c df9fe1213c2634687a9ca0b0bec0d2119d359ae3
 F src/test_thread.c 911d15fb14e19c0c542bdc8aabf981c2f10a4858
 F src/test_vfs.c f0186261a24de2671d080bcd8050732f0cb64f6e
 F src/test_vfstrace.c bab9594adc976cbe696ff3970728830b4c5ed698
-F src/test_windirent.c 5234b0c38bda5cb7dfc031db6a594af2cbcf7fb7
-F src/test_windirent.h 7edc57e2faa727026dbd5d010dd0e2e665d5aa01
+F src/test_windirent.c 17f91f5f2aa1bb7328abb49414c363b5d2a9d3ff
+F src/test_windirent.h 5d67483a55442e31e1bde0f4a230e6e932ad5906
 F src/test_wsd.c 41cadfd9d97fe8e3e4e44f61a4a8ccd6f7ca8fe9
 F src/threads.c 4ae07fa022a3dc7c5beb373cf744a85d3c5c6c3c
 F src/tokenize.c 5c2f516876fc27fbd7753913f032f49eb89e83b5
@@ -1547,7 +1547,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P d3c91c1fb345fbcbfc60a897bebf771c795430c9
-R 2cfcfd69ff656c8eb0c9b18b58b2f78e
+P b92cc6e58ae31cbe6600a522beb5485f7add04b2
+R 28b62fae1b56b071f03984b3c0c7d517
 U mistachkin
-Z e24ce1e7a409b1f16613abdf400a1354
+Z 8396ae361cfa963c7c2449732ae79bb0
diff --git a/manifest.uuid b/manifest.uuid
index 936488379e..0a876335c4 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-b92cc6e58ae31cbe6600a522beb5485f7add04b2
\ No newline at end of file
+a84a08d0716656dc0b26eafb1841c48d83c67ef2
\ No newline at end of file
diff --git a/src/test_windirent.c b/src/test_windirent.c
index 450e4c3cc7..ca78d345d9 100644
--- a/src/test_windirent.c
+++ b/src/test_windirent.c
@@ -73,7 +73,7 @@ LPDIR opendir(
   }
 
   /* TODO: Remove this block to allow hidden and/or system files. */
-  if( data.attrib&_A_HIDDEN || data.attrib&_A_SYSTEM ){
+  if( is_filtered(data) ){
 next:
 
     memset(&data, 0, sizeof(struct _finddata_t));
@@ -83,8 +83,7 @@ next:
     }
 
     /* TODO: Remove this block to allow hidden and/or system files. */
-    if( data.attrib&_A_HIDDEN ) goto next;
-    if( data.attrib&_A_SYSTEM ) goto next;
+    if( is_filtered(data) ) goto next;
   }
 
   dirp->d_first.d_attributes = data.attrib;
@@ -117,8 +116,7 @@ next:
   if( _findnext(dirp->d_handle, &data)==-1 ) return NULL;
 
   /* TODO: Remove this block to allow hidden and/or system files. */
-  if( data.attrib&_A_HIDDEN ) goto next;
-  if( data.attrib&_A_SYSTEM ) goto next;
+  if( is_filtered(data) ) goto next;
 
   dirp->d_next.d_ino++;
   dirp->d_next.d_attributes = data.attrib;
@@ -162,8 +160,7 @@ next:
   }
 
   /* TODO: Remove this block to allow hidden and/or system files. */
-  if( data.attrib&_A_HIDDEN ) goto next;
-  if( data.attrib&_A_SYSTEM ) goto next;
+  if( is_filtered(data) ) goto next;
 
   entry->d_ino = (ino_t)-1; /* not available */
   entry->d_attributes = data.attrib;
diff --git a/src/test_windirent.h b/src/test_windirent.h
index be454988e3..578e2a7c22 100644
--- a/src/test_windirent.h
+++ b/src/test_windirent.h
@@ -92,6 +92,17 @@ struct DIR {
   DIRENT d_next;     /* DIRENT constructed based on "_findnext". */
 };
 
+/*
+** Provide a macro, for use by the implementation, to determine if a
+** particular directory entry should be skipped over when searching for
+** the next directory entry that should be returned by the readdir() or
+** readdir_r() functions.
+*/
+
+#ifndef is_filtered
+#  define is_filtered(a) ((((a).attrib)&_A_HIDDEN) || (((a).attrib)&_A_SYSTEM))
+#endif
+
 /*
 ** Provide the function prototype for the POSIX compatiable getenv()
 ** function.  This function is not thread-safe.