diff --git a/scripts/print_hlsl_builtin.lua b/scripts/print_hlsl_builtin.lua
index d6f6b0932..6688ef65e 100644
--- a/scripts/print_hlsl_builtin.lua
+++ b/scripts/print_hlsl_builtin.lua
@@ -5,7 +5,7 @@ local files_list = {'accel_process', 'bindless_upload', 'bc6_encode_block', 'bc6
                     'bc6_trymode_le10cs', 'bc7_encode_block', 'bc7_header', 'bc7_trymode_02cs', 'bc7_trymode_137cs',
                     'bc7_trymode_456cs', 'hlsl_header', 'raytracing_header', 'tex2d_bindless', 'tex3d_bindless',
                     'compute_quad', 'determinant', 'inverse', 'indirect', 'resource_size', 'accel_header', 'copy_sign',
-                    'bindless_common', 'auto_diff', "reduce", "coroutine"}
+                    'bindless_common', 'auto_diff', "reduce"}
 local lib = import("lib")
 
 local hlsl_builtin_path = path.join(os.projectdir(), "src/backends/common/hlsl/builtin")
diff --git a/src/backends/common/hlsl/builtin/coroutine b/src/backends/common/hlsl/builtin/coroutine
deleted file mode 100644
index e9cc25f62..000000000
--- a/src/backends/common/hlsl/builtin/coroutine
+++ /dev/null
@@ -1,9 +0,0 @@
-template<typename T>
-uint3 CoroId(in T frame){
-return frame.v0.v;
-}
-
-template<typename T>
-uint CoroToken(in T frame){
-return frame.v1;
-}
\ No newline at end of file
diff --git a/src/backends/common/hlsl/builtin/coroutine.c b/src/backends/common/hlsl/builtin/coroutine.c
deleted file mode 100644
index 6f4494609..000000000
--- a/src/backends/common/hlsl/builtin/coroutine.c
+++ /dev/null
@@ -1,4 +0,0 @@
-#include "hlsl_config.h"
-LC_HLSL_EXTERN char coroutine[]={116,101,109,112,108,97,116,101,60,116,121,112,101,110,97,109,101,32,84,62,10,117,105,110,116,51,32,67,111,114,111,73,100,40,105,110,32,84,32,102,114,97,109,101,41,123,10,114,101,116,117,114,110,32,102,114,97,109,101,46,118,48,46,118,59,10,125,10,10,116,101,109,112,108,97,116,101,60,116,121,112,101,110,97,109,101,32,84,62,10,117,105,110,116,32,67,111,114,111,84,111,107,101,110,40,105,110,32,84,32,102,114,97,109,101,41,123,10,114,101,116,117,114,110,32,102,114,97,109,101,46,118,49,59,10,125};
-LC_HLSL_EXTERN char *get_coroutine(){return coroutine;}
-LC_HLSL_EXTERN int get_coroutine_size(){return 136;}
diff --git a/src/backends/common/hlsl/hlsl_codegen_util.cpp b/src/backends/common/hlsl/hlsl_codegen_util.cpp
index 95757f6c7..5cba86d17 100644
--- a/src/backends/common/hlsl/hlsl_codegen_util.cpp
+++ b/src/backends/common/hlsl/hlsl_codegen_util.cpp
@@ -117,10 +117,6 @@ static size_t AddHeader(CallOpSet const &ops, vstd::StringBuilder &builder, bool
         ops.test(CallOp::MATRIX_COMPONENT_WISE_MULTIPLICATION)) {
         builder << CodegenUtility::ReadInternalHLSLFile("reduce");
     }
-    if (ops.test(CallOp::CORO_ID) ||
-        ops.test(CallOp::CORO_TOKEN)) {
-        builder << CodegenUtility::ReadInternalHLSLFile("coroutine");
-    }
     return immutable_size;
 }
 }// namespace detail