diff --git a/contrib/amcheck/verify_heapam.c b/contrib/amcheck/verify_heapam.c
index 8bb890438a..dbe3134b6b 100644
--- a/contrib/amcheck/verify_heapam.c
+++ b/contrib/amcheck/verify_heapam.c
@@ -1342,7 +1342,7 @@ fxid_in_cached_range(FullTransactionId fxid, const HeapCheckContext *ctx)
 }
 
 /*
- * Checks wheter a multitransaction ID is in the cached valid range, returning
+ * Checks whether a multitransaction ID is in the cached valid range, returning
  * the nature of the range violation, if any.
  */
 static XidBoundsViolation