diff --git a/ANNOUNCE b/ANNOUNCE
index 97b2f9be..2d24de07 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -43,6 +43,8 @@ Other information:
 Changes since the last public release (1.2.41):
 
 version 1.2.42beta01 [December 4, 2009]
+  Removed "#define PNG_NO_ERROR_NUMBERS" that was inadvertently added
+    to pngconf.h in version 1.2.41.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 
diff --git a/CHANGES b/CHANGES
index 2a4fa6ec..53ff77c3 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2606,6 +2606,8 @@ version 1.2.41 [December 3, 2009]
   Updated the list of files and made some cosmetic changes in README.
 
 version 1.2.42 [December 4, 2009]
+  Removed "#define PNG_NO_ERROR_NUMBERS" that was inadvertently added
+    to pngconf.h in version 1.2.41.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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diff --git a/pngconf.h b/pngconf.h
index ecce5bc9..63c0c7b7 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -756,7 +756,6 @@
 
 #endif /* PNG_WRITE_SUPPORTED */
 
-#define PNG_NO_ERROR_NUMBERS
 #ifndef PNG_1_0_X
 #  ifndef PNG_NO_ERROR_NUMBERS
 #    define PNG_ERROR_NUMBERS_SUPPORTED