diff --git a/hpvm/projects/visc-rt/makefile b/hpvm/projects/visc-rt/makefile
index 01cc2b7b3fd548f918ea8f43ad5c5bbd4642edc6..e0f7e3b2c0311362f49b7be1915bb54a4f0adf71 100644
--- a/hpvm/projects/visc-rt/makefile
+++ b/hpvm/projects/visc-rt/makefile
@@ -2,12 +2,14 @@
 LLVM_BUILD_ROOT = ${LLVM_SRC_ROOT}/../build/
 
 OPENCL_INC_PATH = /opt/intel/opencl-sdk/include
+CUDA_INC_PATH = /software/cuda-9.1/include/CL/
+
 
 ifeq ($(NUM_CORES),)
   NUM_CORES=8
 endif
 
-CPP_FLAGS = -I $(LLVM_SRC_ROOT)/include -I $(LLVM_BUILD_ROOT)/include -I $(OPENCL_INC_PATH) -std=c++11 -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS
+CPP_FLAGS = -I $(LLVM_SRC_ROOT)/include -I $(LLVM_BUILD_ROOT)/include -I $(OPENCL_INC_PATH) -I $(CUDA_INC_PATH) -std=c++11 -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS
 TARGET:=visc-rt
 
 LLVM_CC:=$(LLVM_BUILD_ROOT)/bin/clang