diff --git a/tools/widl/proxy.c b/tools/widl/proxy.c
index 93eddf570b0..4911caf2b66 100644
--- a/tools/widl/proxy.c
+++ b/tools/widl/proxy.c
@@ -367,7 +367,7 @@ static void gen_stub(type_t *iface, const func_t *cur, const char *cas,
   print_proxy("NdrStubInitialize(_pRpcMessage, &_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
   fprintf(proxy, "\n");
 
-  write_parameters_init(cur);
+  write_parameters_init(proxy, indent, cur);
 
   print_proxy("RpcTryFinally\n");
   print_proxy("{\n");
diff --git a/tools/widl/server.c b/tools/widl/server.c
index e3740ce383f..fd94c9ae323 100644
--- a/tools/widl/server.c
+++ b/tools/widl/server.c
@@ -54,28 +54,6 @@ static void print_server(const char *format, ...)
     va_end(va);
 }
 
-
-void write_parameters_init(const func_t *func)
-{
-    const var_t *var;
-
-    if (!func->args)
-        return;
-
-    LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
-    {
-        const type_t *t = var->type;
-        const char *n = var->name;
-        if (decl_indirect(t))
-            print_server("MIDL_memset(&%s, 0, sizeof %s);\n", n, n);
-        else if (is_ptr(t) || is_array(t))
-            print_server("%s = 0;\n", n);
-    }
-
-    fprintf(server, "\n");
-}
-
-
 static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
 {
     char *implicit_handle = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
@@ -137,7 +115,7 @@ static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
         indent--;
         fprintf(server, "\n");
 
-        write_parameters_init(func);
+        write_parameters_init(server, indent, func);
 
         if (explicit_handle_var)
         {
diff --git a/tools/widl/typegen.c b/tools/widl/typegen.c
index 6da96f5651f..a1e4e6da11f 100644
--- a/tools/widl/typegen.c
+++ b/tools/widl/typegen.c
@@ -273,6 +273,26 @@ void print(FILE *file, int indent, const char *format, va_list va)
     }
 }
 
+void write_parameters_init(FILE *file, int indent, const func_t *func)
+{
+    const var_t *var;
+
+    if (!func->args)
+        return;
+
+    LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
+    {
+        const type_t *t = var->type;
+        const char *n = var->name;
+        if (decl_indirect(t))
+            print_file(file, indent, "MIDL_memset(&%s, 0, sizeof %s);\n", n, n);
+        else if (is_ptr(t) || is_array(t))
+            print_file(file, indent, "%s = 0;\n", n);
+    }
+
+    fprintf(file, "\n");
+}
+
 static void write_formatdesc(FILE *f, int indent, const char *str)
 {
     print_file(f, indent, "typedef struct _MIDL_%s_FORMAT_STRING\n", str);
diff --git a/tools/widl/typegen.h b/tools/widl/typegen.h
index 77b207ef656..eefecd79e8f 100644
--- a/tools/widl/typegen.h
+++ b/tools/widl/typegen.h
@@ -53,5 +53,5 @@ void write_user_quad_list(FILE *file);
 void write_endpoints( FILE *f, const char *prefix, const str_list_t *list );
 size_t type_memsize(const type_t *t, unsigned int *align);
 int decl_indirect(const type_t *t);
-void write_parameters_init(const func_t *func);
+void write_parameters_init(FILE *file, int indent, const func_t *func);
 void print(FILE *file, int indent, const char *format, va_list ap);