diff --git a/ANNOUNCE b/ANNOUNCE
index 0b9bec855..e63396ab4 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -636,6 +636,7 @@ version 1.4.0beta93 [November 7, 2009]
 
 version 1.4.0beta94 [November 7, 2009]
   Removed the obsolete, unused pnggccrd.c and pngvcrd.c files.
+  Updated CMakeLists.txt to add "-DPNG_CONFIGURE_LIBPNG" to the definitions.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/CHANGES b/CHANGES
index e9655e21d..61a21e38f 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2322,6 +2322,7 @@ version 1.4.0beta93 [November 7, 2009]
 
 version 1.4.0beta94 [November 7, 2009]
   Removed the obsolete, unused pnggccrd.c and pngvcrd.c files.
+  Updated CMakeLists.txt to add "-DPNG_CONFIGURE_LIBPNG" to the definitions.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/CMakeLists.txt b/CMakeLists.txt
index df221f026..0622e22ee 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -117,6 +117,9 @@ set(pngtest_sources
        pngtest.c
 )
 # SOME NEEDED DEFINITIONS
+
+add_definitions(-DPNG_CONFIGURE_LIBPNG)
+
 if(MSVC)
   add_definitions(-DPNG_NO_MODULEDEF -D_CRT_SECURE_NO_DEPRECATE)
 endif(MSVC)