diff --git a/bindings/SigarWrapper.pm b/bindings/SigarWrapper.pm
index 9e8a7eac..18921178 100644
--- a/bindings/SigarWrapper.pm
+++ b/bindings/SigarWrapper.pm
@@ -2140,7 +2140,7 @@ our %field_types = (
     Int    => "rb_int2inum",
     Char   => "CHR2FIX",
     String => "rb_str_new2",
-    NetAddress => "rb_sigar_net_address_to_string",
+    NetAddress => "rb_sigar_net_address_to_s",
 );
 
 my $rx_file = 'rbsigar_generated.rx';
diff --git a/bindings/ruby/rbsigar.c b/bindings/ruby/rbsigar.c
index 30c4e2f4..ea3a6c9a 100644
--- a/bindings/ruby/rbsigar.c
+++ b/bindings/ruby/rbsigar.c
@@ -59,13 +59,15 @@ static VALUE rb_sigar_net_interface_flags_to_s(VALUE rclass, VALUE flags)
     return rb_str_new2(sigar_net_interface_flags_to_string(NUM2LL(flags), buffer));
 }
 
-static VALUE rb_sigar_net_address_to_string(sigar_net_address_t address)
+static VALUE rb_sigar_net_address_to_string(sigar_net_address_t *address)
 {
     char addr_str[SIGAR_INET6_ADDRSTRLEN];
-    sigar_net_address_to_string(NULL, &address, addr_str);
+    sigar_net_address_to_string(NULL, address, addr_str);
     return rb_str_new2(addr_str);
 }
 
+#define rb_sigar_net_address_to_s(a) rb_sigar_net_address_to_string(&a) 
+
 static VALUE rb_sigar_new_list(char *data, unsigned long number,
                                int size, VALUE rclass)
 {