diff --git a/main/php_variables.c b/main/php_variables.c
index 7cc2baa9886..be6448e5a32 100644
--- a/main/php_variables.c
+++ b/main/php_variables.c
@@ -636,7 +636,7 @@ static zend_bool php_auto_globals_create_request(const char *name, uint name_len
 
 /* {{{ php_hash_environment
  */
-int php_hash_environment(TSRMLS_D)
+PHPAPI int php_hash_environment(TSRMLS_D)
 {
 	memset(PG(http_globals), 0, sizeof(PG(http_globals)));
 	zend_activate_auto_globals(TSRMLS_C);
diff --git a/main/php_variables.h b/main/php_variables.h
index 37b2cf2a040..2331c582e60 100644
--- a/main/php_variables.h
+++ b/main/php_variables.h
@@ -41,7 +41,7 @@ PHPAPI void php_register_variable(char *var, char *val, zval *track_vars_array T
 PHPAPI void php_register_variable_safe(char *var, char *val, int val_len, zval *track_vars_array TSRMLS_DC);
 PHPAPI void php_register_variable_ex(char *var, zval *val, zval *track_vars_array TSRMLS_DC);
 
-int php_hash_environment(TSRMLS_D);
+PHPAPI int php_hash_environment(TSRMLS_D);
 END_EXTERN_C()
 
 #define NUM_TRACK_VARS	6