diff --git a/contrib/pngminim/decoder/README b/contrib/pngminim/decoder/README
index 4f71082e..981b60b1 100644
--- a/contrib/pngminim/decoder/README
+++ b/contrib/pngminim/decoder/README
@@ -1,6 +1,7 @@
 This demonstrates the use of PNG_USER_CONFIG and pngusr.h
 
 To build a minimal read-only decoder, run
+
     gather.sh  # to collect needed files from pngminus, libpng, and zlib
-    make -f makefile.std
+    make
  
diff --git a/contrib/pngminim/decoder/makefile.std b/contrib/pngminim/decoder/makefile
similarity index 100%
rename from contrib/pngminim/decoder/makefile.std
rename to contrib/pngminim/decoder/makefile
diff --git a/contrib/pngminim/encoder/README b/contrib/pngminim/encoder/README
index 4a68fc89..3a44f13b 100644
--- a/contrib/pngminim/encoder/README
+++ b/contrib/pngminim/encoder/README
@@ -1,6 +1,7 @@
 This demonstrates the use of PNG_USER_CONFIG and pngusr.h
 
 To build a minimal write-only encoder, run
+
     gather.sh  # to collect needed files from pngminus, libpng, and zlib
-    make -f makefile.std
+    make
  
diff --git a/contrib/pngminim/encoder/makefile.std b/contrib/pngminim/encoder/makefile
similarity index 100%
rename from contrib/pngminim/encoder/makefile.std
rename to contrib/pngminim/encoder/makefile
diff --git a/contrib/pngminim/preader/README b/contrib/pngminim/preader/README
index 8a649a1b..33239dd0 100644
--- a/contrib/pngminim/preader/README
+++ b/contrib/pngminim/preader/README
@@ -1,10 +1,11 @@
 This demonstrates the use of PNG_USER_CONFIG and pngusr.h
 
 To build a minimal read-only progressive decoder with X display, run
-gather.sh to collect needed files from gregbook, libpng, and zlib
 
-Edit makefile.std if required, to find your X library and include files,
+    gather.sh # to collect needed files from gregbook, libpng, and zlib
+
+Edit makefile if required, to find your X library and include files,
 then
     
-    make -f makefile.std
+    make
  
diff --git a/contrib/pngminim/preader/makefile.std b/contrib/pngminim/preader/makefile
similarity index 100%
rename from contrib/pngminim/preader/makefile.std
rename to contrib/pngminim/preader/makefile