diff --git a/pgxn/neon/relperst_cache.c b/pgxn/neon/relperst_cache.c
index 6bb85e1123..ff40ea97f2 100644
--- a/pgxn/neon/relperst_cache.c
+++ b/pgxn/neon/relperst_cache.c
@@ -113,7 +113,7 @@ RelperstCacheShmemInit(void)
 }
 
 /*
- * Lookup existed entry or create new one
+ * Lookup existing entry or create a new one
  */
 static NeonRelPersistenceEntry*
 get_pinned_entry(NRelFileInfo rinfo)