diff --git a/.gitignore b/.gitignore
index b0f39c40..ab80cec1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,5 +5,6 @@ stash
 database.json
 database_best.json
 cl.hpp
+opencl.hpp
 src/pyclblast/dist
 *.egg-info
diff --git a/samples/dtrsm.cpp b/samples/dtrsm.cpp
index 979c01d9..c558d1f5 100644
--- a/samples/dtrsm.cpp
+++ b/samples/dtrsm.cpp
@@ -24,6 +24,8 @@
 
 // Includes the C++ OpenCL API. If not yet available, it can be found here:
 // https://raw.githubusercontent.com/KhronosGroup/OpenCL-CLHPP/main/include/CL/opencl.hpp
+#define CL_HPP_TARGET_OPENCL_VERSION 210
+#define CL_TARGET_OPENCL_VERSION 210
 #include "opencl.hpp"
 
 // Includes the CLBlast library
diff --git a/samples/sgemm.cpp b/samples/sgemm.cpp
index fce2af43..534ffa78 100644
--- a/samples/sgemm.cpp
+++ b/samples/sgemm.cpp
@@ -25,6 +25,8 @@
 
 // Includes the C++ OpenCL API. If not yet available, it can be found here:
 // https://raw.githubusercontent.com/KhronosGroup/OpenCL-CLHPP/main/include/CL/opencl.hpp
+#define CL_HPP_TARGET_OPENCL_VERSION 210
+#define CL_TARGET_OPENCL_VERSION 210
 #include "opencl.hpp"
 
 // Includes the CLBlast library
diff --git a/samples/sgemm_batched.cpp b/samples/sgemm_batched.cpp
index a986eec7..a839d305 100644
--- a/samples/sgemm_batched.cpp
+++ b/samples/sgemm_batched.cpp
@@ -25,6 +25,8 @@
 
 // Includes the C++ OpenCL API. If not yet available, it can be found here:
 // https://raw.githubusercontent.com/KhronosGroup/OpenCL-CLHPP/main/include/CL/opencl.hpp
+#define CL_HPP_TARGET_OPENCL_VERSION 210
+#define CL_TARGET_OPENCL_VERSION 210
 #include "opencl.hpp"
 
 // Includes the CLBlast library
diff --git a/samples/tuning_api.cpp b/samples/tuning_api.cpp
index ea75c7f9..7d7294ad 100644
--- a/samples/tuning_api.cpp
+++ b/samples/tuning_api.cpp
@@ -21,6 +21,8 @@
 
 // Includes the C++ OpenCL API. If not yet available, it can be found here:
 // https://raw.githubusercontent.com/KhronosGroup/OpenCL-CLHPP/main/include/CL/opencl.hpp
+#define CL_HPP_TARGET_OPENCL_VERSION 210
+#define CL_TARGET_OPENCL_VERSION 210
 #include "opencl.hpp"
 
 // Includes the CLBlast library