diff --git a/ext/curl/interface.c b/ext/curl/interface.c
index 1f83ee4e0c1..04a62632498 100644
--- a/ext/curl/interface.c
+++ b/ext/curl/interface.c
@@ -325,9 +325,6 @@ zend_module_entry curl_module_entry = {
 
 #ifdef COMPILE_DL_CURL
 ZEND_GET_MODULE (curl)
-# ifdef PHP_WIN32
-# include "zend_arg_defs.c"
-# endif
 #endif
 
 /* {{{ PHP_MINFO_FUNCTION
diff --git a/ext/gmp/gmp.c b/ext/gmp/gmp.c
index 963908e2367..3e723e6f4f6 100644
--- a/ext/gmp/gmp.c
+++ b/ext/gmp/gmp.c
@@ -333,9 +333,6 @@ zend_module_entry gmp_module_entry = {
 
 #ifdef COMPILE_DL_GMP
 ZEND_GET_MODULE(gmp)
-# ifdef PHP_WIN32
-# include "zend_arg_defs.c"
-# endif
 #endif
 
 static void _php_gmpnum_free(zend_rsrc_list_entry *rsrc TSRMLS_DC);
diff --git a/ext/libxml/libxml.c b/ext/libxml/libxml.c
index a7a719898d8..1e373f664d2 100644
--- a/ext/libxml/libxml.c
+++ b/ext/libxml/libxml.c
@@ -68,9 +68,6 @@ zend_class_entry *libxmlerror_class_entry;
 /* {{{ dynamically loadable module stuff */
 #ifdef COMPILE_DL_LIBXML
 ZEND_GET_MODULE(libxml)
-# ifdef PHP_WIN32
-# include "zend_arg_defs.c"
-# endif
 #endif /* COMPILE_DL_LIBXML */
 /* }}} */