diff --git a/ANNOUNCE b/ANNOUNCE
index d582df10f..ac706cb49 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -43,6 +43,7 @@ Version 1.5.6beta01 [September 22, 2011]
 Version 1.5.6beta02 [September 26, 2011]
   Added a note in the manual the png_read_update_info() must be called only
     once with a particular info_ptr.
+  Fixed a typo in the definition of the new PNG_STRING_FROM_CHUNK(s,c) macro.
 
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diff --git a/CHANGES b/CHANGES
index 85cfeafa0..d9228662d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3604,6 +3604,7 @@ Version 1.5.6beta01 [September 22, 2011]
 Version 1.5.6beta02 [September 26, 2011]
   Added a note in the manual the png_read_update_info() must be called only
     once with a particular info_ptr.
+  Fixed a typo in the definition of the new PNG_STRING_FROM_CHUNK(s,c) macro.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/pngpriv.h b/pngpriv.h
index 4a73b66df..1f102ccbf 100644
--- a/pngpriv.h
+++ b/pngpriv.h
@@ -554,7 +554,7 @@ PNG_EXTERN png_fixed_point png_fixed PNGARG((png_structp png_ptr, double fp,
  */
 #define PNG_STRING_FROM_CHUNK(s,c)\
    (void)(((char*)(s))[0]=(char)((c)>>24), ((char*)(s))[1]=(char)((c)>>16),\
-   ((char*)(s))[3]=(char)((c)>>8), ((char*)(s))[3]=(char)((c)))
+   ((char*)(s))[2]=(char)((c)>>8), ((char*)(s))[3]=(char)((c)))
 
 /* Do the same but terminate with a null character. */
 #define PNG_CSTRING_FROM_CHUNK(s,c)\