diff --git a/test/suite-boot.janet b/test/suite-boot.janet
index bcaa1f9d..d77611a6 100644
--- a/test/suite-boot.janet
+++ b/test/suite-boot.janet
@@ -1001,5 +1001,8 @@
                   @{:key1 "value1" @"key" "value2"}) "deep= mutable keys"))
 (assert (deep-not= {"abc" 123} {@"abc" 123}) "deep= mutable keys vs immutable key")
 (assert (deep= {@"" 1 @"" 2 @"" 3} {@"" 1 @"" 2 @"" 3}) "deep= duplicate mutable keys")
+(assert (deep= {@"" @"" @"" @"" @"" 3} {@"" @"" @"" @"" @"" 3}) "deep= duplicate mutable keys 2")
+(assert (deep= {@[] @"" @[] @"" @[] 3} {@[] @"" @[] @"" @[] 3}) "deep= duplicate mutable keys 3")
+(assert (deep= {@{} @"" @{} @"" @{} 3} {@{} @"" @{} @"" @{} 3}) "deep= duplicate mutable keys 4")
 
 (end-suite)