diff --git a/src/lceasy.c b/src/lceasy.c
index de84c15..f02aeca 100644
--- a/src/lceasy.c
+++ b/src/lceasy.c
@@ -93,13 +93,13 @@ int lcurl_easy_create(lua_State *L, int error_mode){
 
 lcurl_easy_t *lcurl_geteasy_at(lua_State *L, int i){
   lcurl_easy_t *p = (lcurl_easy_t *)lutil_checkudatap (L, i, LCURL_EASY);
-  luaL_argcheck (L, p != NULL, 1, LCURL_EASY_NAME" expected");
+  luaL_argcheck (L, p != NULL, 1, LCURL_EASY_NAME" object expected");
   return p;
 }
 
 static int lcurl_easy_to_s(lua_State *L){
   lcurl_easy_t *p = (lcurl_easy_t *)lutil_checkudatap (L, 1, LCURL_EASY);
-  lua_pushfstring(L, LCURL_PREFIX " Easy (%p)", (void*)p);
+  lua_pushfstring(L, LCURL_EASY_NAME" (%p)", (void*)p);
   return 1;
 }
 
diff --git a/src/lchttppost.c b/src/lchttppost.c
index e9e1ecf..65c4ff0 100644
--- a/src/lchttppost.c
+++ b/src/lchttppost.c
@@ -112,10 +112,16 @@ int lcurl_hpost_create(lua_State *L, int error_mode){
 
 lcurl_hpost_t *lcurl_gethpost_at(lua_State *L, int i){
   lcurl_hpost_t *p = (lcurl_hpost_t *)lutil_checkudatap (L, i, LCURL_HTTPPOST);
-  luaL_argcheck (L, p != NULL, 1, LCURL_PREFIX"HTTPPost object expected");
+  luaL_argcheck (L, p != NULL, 1, LCURL_HTTPPOST_NAME" object expected");
   return p;
 }
 
+static int lcurl_hpost_to_s(lua_State *L){
+  lcurl_hpost_t *p = (lcurl_hpost_t *)lutil_checkudatap (L, 1, LCURL_HTTPPOST);
+  lua_pushfstring(L, LCURL_HTTPPOST_NAME" (%p)", (void*)p);
+  return 1;
+}
+
 static int lcurl_hpost_add_content(lua_State *L){
   // add_buffer(name, data, [type,] [headers])
   lcurl_hpost_t *p = lcurl_gethpost(L);
diff --git a/src/lcmulti.c b/src/lcmulti.c
index 08a0dd3..925535c 100644
--- a/src/lcmulti.c
+++ b/src/lcmulti.c
@@ -71,13 +71,13 @@ int lcurl_multi_create(lua_State *L, int error_mode){
 
 lcurl_multi_t *lcurl_getmulti_at(lua_State *L, int i){
   lcurl_multi_t *p = (lcurl_multi_t *)lutil_checkudatap (L, i, LCURL_MULTI);
-  luaL_argcheck (L, p != NULL, 1, LCURL_MULTI_NAME" expected");
+  luaL_argcheck (L, p != NULL, 1, LCURL_MULTI_NAME" object expected");
   return p;
 }
 
 static int lcurl_multi_to_s(lua_State *L){
   lcurl_multi_t *p = (lcurl_multi_t *)lutil_checkudatap (L, 1, LCURL_MULTI);
-  lua_pushfstring(L, LCURL_PREFIX " Multi (%p)", (void*)p);
+  lua_pushfstring(L, LCURL_MULTI_NAME" (%p)", (void*)p);
   return 1;
 }
 
diff --git a/src/lcshare.c b/src/lcshare.c
index 604111a..88e93f1 100644
--- a/src/lcshare.c
+++ b/src/lcshare.c
@@ -39,13 +39,13 @@ int lcurl_share_create(lua_State *L, int error_mode){
 
 lcurl_share_t *lcurl_getshare_at(lua_State *L, int i){
   lcurl_share_t *p = (lcurl_share_t *)lutil_checkudatap (L, i, LCURL_SHARE);
-  luaL_argcheck (L, p != NULL, 1, LCURL_SHARE_NAME" expected");
+  luaL_argcheck (L, p != NULL, 1, LCURL_SHARE_NAME" object expected");
   return p;
 }
 
 static int lcurl_easy_to_s(lua_State *L){
   lcurl_share_t *p = (lcurl_share_t *)lutil_checkudatap (L, 1, LCURL_SHARE);
-  lua_pushfstring(L, LCURL_PREFIX " Share (%p)", (void*)p);
+  lua_pushfstring(L, LCURL_SHARE_NAME" (%p)", (void*)p);
   return 1;
 }