diff --git a/nix/t1/release/default.nix b/nix/t1/release/default.nix
index 6dcb70a55d..7f376a77b8 100644
--- a/nix/t1/release/default.nix
+++ b/nix/t1/release/default.nix
@@ -19,17 +19,23 @@
 let
   extension = lib.head elaborateConfig.parameter.extensions;
   isFp = lib.hasInfix "f" extension;
+
+  # dontFixup is set to true by default for debugging. However it will bring LLVM runtime and clang into the final images.
+  # For docker release, test ELF is for demo usage only, so I don't want those implicit huge dependencies get into the container.
+  stripCase = case: case.overrideAttrs {
+    dontFixup = false;
+  };
 in
 
 lib.makeScope newScope (scope: rec {
   inherit elaborateConfigJson configName;
 
-  testCases = with cases; [
+  testCases = map stripCase (with cases; [
     intrinsic.matmul
   ] ++ lib.optionals isFp [
     intrinsic.softmax
     intrinsic.linear_normalization
-  ];
+  ]);
 
   emulator-wrapped = runCommand "ip-emulator"
     {