diff --git a/tests/heap_lang.v b/tests/heap_lang.v
index 0ab4a6b4d2fc6ac2214562329bd427653eb17bd1..a738ffb97c32a3e87f15a21b94e80259c7d9e4a4 100644
--- a/tests/heap_lang.v
+++ b/tests/heap_lang.v
@@ -2,6 +2,7 @@ From iris.program_logic Require Export weakestpre total_weakestpre.
 From iris.heap_lang Require Import lang adequacy proofmode notation.
 (* Import lang *again*. This used to break notation. *)
 From iris.heap_lang Require Import lang.
+Set Ltac Backtrace.
 Set Default Proof Using "Type".
 
 Section tests.
diff --git a/tests/proofmode.v b/tests/proofmode.v
index c4566b7b489dcf659af2caaf439fd14bfbb6ced0..7fd712ccb75ca3e40a52af3648dabd68b4c0c146 100644
--- a/tests/proofmode.v
+++ b/tests/proofmode.v
@@ -1,4 +1,5 @@
 From iris.proofmode Require Import tactics intro_patterns.
+Set Ltac Backtrace.
 Set Default Proof Using "Type".
 
 Section tests.
diff --git a/tests/proofmode_iris.v b/tests/proofmode_iris.v
index 0beb0b2d3aa6c036f0bc46f0d00c236cdeb87f77..545967539c3d03636ebe101eeb408c82afde3069 100644
--- a/tests/proofmode_iris.v
+++ b/tests/proofmode_iris.v
@@ -1,6 +1,7 @@
 From iris.proofmode Require Import tactics monpred.
 From iris.base_logic Require Import base_logic.
 From iris.base_logic.lib Require Import invariants cancelable_invariants na_invariants.
+Set Ltac Backtrace.
 
 Section base_logic_tests.
   Context {M : ucmraT}.
diff --git a/tests/proofmode_monpred.v b/tests/proofmode_monpred.v
index c683a11a74f73442789fca7307f5b408cd74442f..a88a79168cee626a47e0994a368d1e295df2f151 100644
--- a/tests/proofmode_monpred.v
+++ b/tests/proofmode_monpred.v
@@ -1,4 +1,5 @@
 From iris.proofmode Require Import tactics monpred.
+Set Ltac Backtrace.
 
 Section tests.
   Context {I : biIndex} {PROP : sbi}.