diff --git a/CHANGELOG.md b/CHANGELOG.md
index 09cdf02..79677d6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.6.1 (unreleased)
+
+- Fixed `safety_assured` for custom checks with `safe_by_default`
+
 ## 1.6.0 (2023-07-22)
 
 - Added check for `change_column_default`
diff --git a/lib/strong_migrations/checker.rb b/lib/strong_migrations/checker.rb
index 49d6c33..4d85f61 100644
--- a/lib/strong_migrations/checker.rb
+++ b/lib/strong_migrations/checker.rb
@@ -78,9 +78,11 @@ def perform(method, *args)
           @committed = true
         end
 
-        # custom checks
-        StrongMigrations.checks.each do |check|
-          @migration.instance_exec(method, args, &check)
+        if !safe?
+          # custom checks
+          StrongMigrations.checks.each do |check|
+            @migration.instance_exec(method, args, &check)
+          end
         end
       end