diff --git a/ANNOUNCE b/ANNOUNCE
index 67837ea9f..b7c1a38e9 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -456,6 +456,7 @@ Version 1.5.0beta56 [December 7, 2010]
   Added some commentary about PNG_EXPORT in png.h and pngconf.h
   Revised PNG_EXPORT() macro and added PNG_EXPORTA() macro, with the
     objective of simplifying and improving the cosmetic appearance of png.h.
+  Fixed some incorrect "=" macro names in pnglibconf.dfa
 
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diff --git a/CHANGES b/CHANGES
index 65f4ef54a..3a14e8408 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3094,6 +3094,7 @@ Version 1.5.0beta56 [December 7, 2010]
   Added some commentary about PNG_EXPORT in png.h and pngconf.h
   Revised PNG_EXPORT() macro and added PNG_EXPORTA() macro, with the
     objective of simplifying and improving the cosmetic appearance of png.h.
+  Fixed some incorrect "=" macro names in pnglibconf.dfa
 
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 (subscription required; visit
diff --git a/scripts/README.txt b/scripts/README.txt
index a51edc6a6..5d9d51408 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,5 +1,5 @@
 
-Makefiles for  libpng version 1.5.0beta56 - November 25, 2010
+Makefiles for  libpng version 1.5.0beta56 - December 7, 2010
 
 pnglibconf.h.prebuilt       =>  Stores configuration settings
  makefile.linux    =>  Linux/ELF makefile
diff --git a/scripts/pnglibconf.dfa b/scripts/pnglibconf.dfa
index beff7131e..42440426a 100644
--- a/scripts/pnglibconf.dfa
+++ b/scripts/pnglibconf.dfa
@@ -301,7 +301,7 @@ option READ_16BIT requires READ enables 16BIT
 option READ_QUANTIZE requires READ
 
 option READ_TRANSFORMS requires READ
-= NO_READ_TRANSFORMS PNG_READ_TRANSFORMS_NOT_SUPPORTED
+= NO_READ_TRANSFORMS READ_TRANSFORMS_NOT_SUPPORTED
 
 option READ_EXPAND requires READ_TRANSFORMS
 option READ_SHIFT requires READ_TRANSFORMS
@@ -332,12 +332,12 @@ option SEQUENTIAL_READ requires READ
 #option READ_INTERLACING requires READ
 
 option READ_COMPOSITE_NODIV requires READ
-= NO_READ_COMPOSITE_NODIV PNG_NO_READ_COMPOSITED_NODIV
+= NO_READ_COMPOSITE_NODIV NO_READ_COMPOSITED_NODIV
 
 # Inch conversions
 
 option INCH_CONVERSIONS
-= INCH_CONVERSIONS PNG_INCH_CONVERSIONS
+= INCH_CONVERSIONS INCH_CONVERSIONS
 
 # IN DEVELOPMENT
 # These are currently experimental features, define them if you want
@@ -355,7 +355,7 @@ option WRITE
 option WRITE_16BIT requires WRITE enables 16BIT
 
 option WRITE_TRANSFORMS requires WRITE
-= NO_WRITE_TRANSFORMS PNG_WRITE_TRANSFORMS_NOT_SUPPORTED
+= NO_WRITE_TRANSFORMS WRITE_TRANSFORMS_NOT_SUPPORTED
 
 option WRITE_SHIFT requires WRITE_TRANSFORMS
 option WRITE_PACK requires WRITE_TRANSFORMS