diff --git a/ANNOUNCE b/ANNOUNCE
index f06854deb..2c6c41c17 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.5.14rc01 - January 17, 2013
+Libpng 1.5.14rc02 - January 17, 2013
 
 This is not intended to be a public release.  It will be replaced
 within a few weeks by a public version or by another test version.
@@ -9,20 +9,20 @@ Files available for download:
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script
 
-   1.5.14rc01.tar.xz (LZMA-compressed, recommended)
-   1.5.14rc01.tar.gz
-   1.5.14rc01.tar.bz2
+   1.5.14rc02.tar.xz (LZMA-compressed, recommended)
+   1.5.14rc02.tar.gz
+   1.5.14rc02.tar.bz2
 
 Source files with CRLF line endings (for Windows), without the
 "configure" script
 
-   lp1514r01.7z  (LZMA-compressed, recommended)
-   lp1514r01.zip
+   lp1514r02.7z  (LZMA-compressed, recommended)
+   lp1514r02.zip
 
 Other information:
 
-   1.5.14rc01-README.txt
-   1.5.14rc01-LICENSE.txt
+   1.5.14rc02-README.txt
+   1.5.14rc02-LICENSE.txt
 
 Changes since the last public release (1.5.13):
 
@@ -80,6 +80,9 @@ Version 1.5.14beta08 [January 10, 2013]
 Version 1.5.14rc01 [January 17, 2013]
   No changes.
 
+Version 1.5.14rc02 [January 17, 2013]
+  Change info_ptr->unknown_chunks_num to type png_uint_32
+
   ===========================================================================
                        NOTICE November 17, 2012:
      The location of the git repository at SourceForge has changed.
diff --git a/CHANGES b/CHANGES
index cc6bd70e6..87fbfda97 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3973,6 +3973,9 @@ Version 1.5.14beta08 [January 10, 2013]
 Version 1.5.14rc01 [January 17, 2013]
   No changes.
 
+Version 1.5.14rc02 [January 17, 2013]
+  Change info_ptr->unknown_chunks_num to type png_uint_32
+
   ===========================================================================
                        NOTICE November 17, 2012:
      The location of the git repository at SourceForge has changed.
diff --git a/pnginfo.h b/pnginfo.h
index a33bfab06..2c266e30a 100644
--- a/pnginfo.h
+++ b/pnginfo.h
@@ -228,7 +228,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
  defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
    /* Storage for unknown chunks that the library doesn't recognize. */
    png_unknown_chunkp unknown_chunks;
-   int unknown_chunks_num;
+   png_uint_32 unknown_chunks_num;
 #endif
 
 #ifdef PNG_iCCP_SUPPORTED
diff --git a/pngset.c b/pngset.c
index 6a1c10911..6f645b42c 100644
--- a/pngset.c
+++ b/pngset.c
@@ -1040,7 +1040,7 @@ png_set_unknown_chunks(png_structp png_ptr,
       return;
 
    if (num_unknowns < 0 ||
-       num_unknowns >= UINT_MAX-info_ptr->unknown_chunks_num ||
+       num_unknowns >= INT_MAX-info_ptr->unknown_chunks_num ||
        num_unknowns >= PNG_SIZE_MAX/png_sizeof(png_unknown_chunk)
        - info_ptr->unknown_chunks_num)
       np=NULL;