diff --git a/src/backend/access/common/reloptions.c b/src/backend/access/common/reloptions.c
index 530a1ae..4a5b767 100644
--- a/src/backend/access/common/reloptions.c
+++ b/src/backend/access/common/reloptions.c
@@ -307,6 +307,8 @@ static void initialize_reloptions(void);
 static void parse_one_reloption(relopt_value *option, char *text_str,
 					int text_len, bool validate);
 
+static bool is_valid_reloption(char *name);
+
 /*
  * initialize_reloptions
  *		initialization routine, must be called before parsing
@@ -382,6 +384,25 @@ initialize_reloptions(void)
 }
 
 /*
+ * is_valid_reloption
+ *		check if a reloption exists
+ *
+ */
+static bool
+is_valid_reloption(char *name)
+{
+	int i;
+
+	for (i = 0; relOpts[i]; i++)
+	{
+		if (pg_strcasecmp(relOpts[i]->name, name) == 0)
+			return true;
+	}
+
+	return false;
+}
+
+/*
  * add_reloption_kind
  *		Create a new relopt_kind value, to be used in custom reloptions by
  *		user-defined AMs.
@@ -674,6 +695,11 @@ transformRelOptions(Datum oldOptions, List *defList, char *namspace,
 
 		if (isReset)
 		{
+			if (!is_valid_reloption(def->defname))
+				ereport(ERROR,
+						(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
+						 errmsg("unrecognized parameter \"%s\"", def->defname)));
+
 			if (def->arg != NULL)
 				ereport(ERROR,
 						(errcode(ERRCODE_SYNTAX_ERROR),
diff --git a/src/test/regress/expected/alter_table.out b/src/test/regress/expected/alter_table.out
index 0f0c638..195103e 100644
--- a/src/test/regress/expected/alter_table.out
+++ b/src/test/regress/expected/alter_table.out
@@ -7,6 +7,14 @@ COMMENT ON TABLE tmp_wrong IS 'table comment';
 ERROR:  relation "tmp_wrong" does not exist
 COMMENT ON TABLE tmp IS 'table comment';
 COMMENT ON TABLE tmp IS NULL;
+ALTER TABLE tmp SET (fillfactor=70);
+ALTER TABLE tmp RESET (fillfactor, noname);
+ERROR:  unrecognized parameter "noname"
+ALTER TABLE tmp RESET (fillfactor=70);
+ERROR:  RESET must not include values for parameters
+ALTER TABLE tmp RESET (fillfactor);
+ALTER TABLE tmp RESET (noname);
+ERROR:  unrecognized parameter "noname"
 ALTER TABLE tmp ADD COLUMN xmin integer; -- fails
 ERROR:  column name "xmin" conflicts with a system column name
 ALTER TABLE tmp ADD COLUMN a int4 default 3;
diff --git a/src/test/regress/sql/alter_table.sql b/src/test/regress/sql/alter_table.sql
index 87973c1..2cb31f2 100644
--- a/src/test/regress/sql/alter_table.sql
+++ b/src/test/regress/sql/alter_table.sql
@@ -9,6 +9,16 @@ COMMENT ON TABLE tmp_wrong IS 'table comment';
 COMMENT ON TABLE tmp IS 'table comment';
 COMMENT ON TABLE tmp IS NULL;
 
+ALTER TABLE tmp SET (fillfactor=70);
+
+ALTER TABLE tmp RESET (fillfactor, noname);
+
+ALTER TABLE tmp RESET (fillfactor=70);
+
+ALTER TABLE tmp RESET (fillfactor);
+
+ALTER TABLE tmp RESET (noname);
+
 ALTER TABLE tmp ADD COLUMN xmin integer; -- fails
 
 ALTER TABLE tmp ADD COLUMN a int4 default 3;