diff --git a/lib/php/Makefile.am b/lib/php/Makefile.am
index 927de98..2b6b5fa 100755
--- a/lib/php/Makefile.am
+++ b/lib/php/Makefile.am
@@ -119,7 +119,7 @@
   src/Thrift.php \
   src/TStringUtils.php \
   thrift_protocol.ini \
-  README.apache
+  README.apache.md
 
 MAINTAINERCLEANFILES = \
   Makefile \
diff --git a/lib/php/README.apache b/lib/php/README.apache.md
similarity index 100%
rename from lib/php/README.apache
rename to lib/php/README.apache.md
diff --git a/lib/php/README b/lib/php/README.md
similarity index 100%
rename from lib/php/README
rename to lib/php/README.md