diff --git a/src/hb-aat-layout-common.hh b/src/hb-aat-layout-common.hh
index 22c84255b..3d562e795 100644
--- a/src/hb-aat-layout-common.hh
+++ b/src/hb-aat-layout-common.hh
@@ -538,6 +538,7 @@ struct hb_aat_apply_context_t :
     sanitizer.init (table);
     sanitizer.set_num_glyphs (face->get_num_glyphs ());
     sanitizer.start_processing ();
+    sanitizer.set_max_ops ((unsigned int) -1);
   }
 
   inline void set_lookup_index (unsigned int i) { lookup_index = i; }
diff --git a/src/hb-machinery.hh b/src/hb-machinery.hh
index 9c73df2ca..5eaec759c 100644
--- a/src/hb-machinery.hh
+++ b/src/hb-machinery.hh
@@ -252,6 +252,8 @@ struct hb_sanitize_context_t :
   }
   inline unsigned int get_num_glyphs (void) { return num_glyphs; }
 
+  inline void set_max_ops (unsigned int max_ops_) { max_ops = max_ops_; }
+
   inline void start_processing (void)
   {
     this->start = this->blob->data;