diff --git a/migrations/1509484288_add_block_index.down.sql b/migrations/1509484288_add_block_index.down.sql
new file mode 100644
index 00000000..9a1d42fb
--- /dev/null
+++ b/migrations/1509484288_add_block_index.down.sql
@@ -0,0 +1 @@
+DROP INDEX block_number_index;
\ No newline at end of file
diff --git a/migrations/1509484288_add_block_index.up.sql b/migrations/1509484288_add_block_index.up.sql
new file mode 100644
index 00000000..a4710b9c
--- /dev/null
+++ b/migrations/1509484288_add_block_index.up.sql
@@ -0,0 +1 @@
+CREATE INDEX block_number_index ON blocks (block_number);
diff --git a/migrations/schema.sql b/migrations/schema.sql
index 2c938aa5..83dd2c59 100644
--- a/migrations/schema.sql
+++ b/migrations/schema.sql
@@ -149,6 +149,13 @@ ALTER TABLE ONLY transactions
     ADD CONSTRAINT transactions_pkey PRIMARY KEY (id);
 
 
+--
+-- Name: block_number_index; Type: INDEX; Schema: public; Owner: -
+--
+
+CREATE INDEX block_number_index ON blocks USING btree (block_number);
+
+
 --
 -- Name: transactions fk_test; Type: FK CONSTRAINT; Schema: public; Owner: -
 --