diff --git a/src/hb-aat-layout-kerx-table.hh b/src/hb-aat-layout-kerx-table.hh
index 6e9f30073..f075a270a 100644
--- a/src/hb-aat-layout-kerx-table.hh
+++ b/src/hb-aat-layout-kerx-table.hh
@@ -267,7 +267,7 @@ struct KerxSubTableFormat1
 	unsigned int kern_idx = Format1EntryT::kernActionIndex (entry);
 	kern_idx = Types::offsetToIndex (kern_idx, &table->machine, kernAction.arrayZ);
 	const FWORD *actions = &kernAction[kern_idx];
-	if (!c->sanitizer.check_array2 (actions, depth, tuple_count))
+	if (!c->sanitizer.check_array (actions, depth, tuple_count))
 	{
 	  depth = 0;
 	  return false;
diff --git a/src/hb-machinery.hh b/src/hb-machinery.hh
index fa2c7b3a1..ce6c94535 100644
--- a/src/hb-machinery.hh
+++ b/src/hb-machinery.hh
@@ -343,11 +343,11 @@ struct hb_sanitize_context_t :
   }
 
   template <typename T>
-  inline bool check_array2 (const T *base,
-			    unsigned int a,
-			    unsigned int b) const
+  inline bool check_array (const T *base,
+			   unsigned int a,
+			   unsigned int b) const
   {
-    return this->check_range (base, a * b, T::static_size);
+    return this->check_range (base, a, b, T::static_size);
   }
 
   template <typename Type>