diff --git a/llvm/projects/hpvm-tensor-rt/tensor_runtime/include/tensor_signatures.cc b/llvm/projects/hpvm-tensor-rt/tensor_runtime/include/tensor_signatures.cc
index 1b4dd03b25352290198178fba7bd35590d5fe0cc..e7784cb18e7e7c766f0ae27e6588d4851a2f2812 100644
--- a/llvm/projects/hpvm-tensor-rt/tensor_runtime/include/tensor_signatures.cc
+++ b/llvm/projects/hpvm-tensor-rt/tensor_runtime/include/tensor_signatures.cc
@@ -7,6 +7,9 @@ void dummyFunction(){
   void* initRT = (void*) &llvm_hpvm_initTensorRt;
   void* cleanRT = (void*) &llvm_hpvm_cleanupTensorRt;
 
+  void* initApproxRT = (void*) &llvm_hpvm_initApproxhpvmRt;
+  void* cleanApproxRT = (void*) &llvm_hpvm_cleanupApproxhpvmRt;
+
   void* initRTController = (void*) &llvm_hpvm_initializeRuntimeController;
   void* cleanRTController = (void*) &llvm_hpvm_clearRuntimeController;