diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/schema/H2AccountPatchReviewStore.java b/gerrit-server/src/main/java/com/google/gerrit/server/schema/H2AccountPatchReviewStore.java
index b5862f2..6dbe916 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/schema/H2AccountPatchReviewStore.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/schema/H2AccountPatchReviewStore.java
@@ -143,7 +143,7 @@
             + "account_id INTEGER DEFAULT 0 NOT NULL, "
             + "change_id INTEGER DEFAULT 0 NOT NULL, "
             + "patch_set_id INTEGER DEFAULT 0 NOT NULL, "
-            + "file_name VARCHAR(255) DEFAULT '' NOT NULL, "
+            + "file_name VARCHAR(4096) DEFAULT '' NOT NULL, "
             + "CONSTRAINT primary_key_account_patch_reviews "
             + "PRIMARY KEY (account_id, change_id, patch_set_id, file_name)"
             + ")");