diff --git a/lib/php/Makefile.am b/lib/php/Makefile.am
index e9d673c..fbf70f9 100755
--- a/lib/php/Makefile.am
+++ b/lib/php/Makefile.am
@@ -31,6 +31,10 @@
 
 phpmoduledir = `php-config --extension-dir`
 phpmodule_SCRIPTS = src/ext/thrift_protocol/modules/thrift_protocol.so
+
+distclean-local:
+	cd $(phpmodule_SCRIPTS) && $(PHPIZE) --clean
+
 endif
 
 phpdir = $(PHP_PREFIX)/Thrift
@@ -119,6 +123,7 @@
   src/ext/thrift_protocol/run-tests.php \
   src/Thrift.php \
   src/TStringUtils.php \
+  coding_standards.md \
   thrift_protocol.ini \
   README.apache.md \
   README.md