diff --git a/tests/compiler/bigctor.lean b/tests/compiler/bigctor.lean
index 1206779290..84bd189bf8 100644
--- a/tests/compiler/bigctor.lean
+++ b/tests/compiler/bigctor.lean
@@ -1,3 +1,4 @@
+set_option genInjectivity false
 structure Foo where
   x1  : Nat := 0
   x2  : Nat := 0
diff --git a/tests/lean/run/bigctor.lean b/tests/lean/run/bigctor.lean
index b14a8e8b2c..fd8d32b2c0 100644
--- a/tests/lean/run/bigctor.lean
+++ b/tests/lean/run/bigctor.lean
@@ -1,3 +1,4 @@
+set_option genInjectivity false
 structure Foo where
   x1  : Nat := 0
   x2  : Nat := 0