diff --git a/src/gallium/state_trackers/clover/api/dispatch.hpp b/src/gallium/state_trackers/clover/api/dispatch.hpp
index 7f62282..f5627e3 100644
--- a/src/gallium/state_trackers/clover/api/dispatch.hpp
+++ b/src/gallium/state_trackers/clover/api/dispatch.hpp
@@ -24,6 +24,7 @@
 #define API_DISPATCH_HPP
 
 #define CL_USE_DEPRECATED_OPENCL_1_1_APIS
+#undef __VEC__
 
 #include "CL/cl.h"
 #include "CL/cl_ext.h"
diff --git a/src/gallium/state_trackers/clover/core/error.hpp b/src/gallium/state_trackers/clover/core/error.hpp
index 59a5af4..ea6535b 100644
--- a/src/gallium/state_trackers/clover/core/error.hpp
+++ b/src/gallium/state_trackers/clover/core/error.hpp
@@ -23,6 +23,7 @@
 #ifndef CLOVER_CORE_ERROR_HPP
 #define CLOVER_CORE_ERROR_HPP
 
+#undef __VEC__
 #include "CL/cl.h"
 
 #include <stdexcept>
diff --git a/src/gallium/state_trackers/clover/core/object.hpp b/src/gallium/state_trackers/clover/core/object.hpp
index e3a5ab7..f6e3c8e 100644
--- a/src/gallium/state_trackers/clover/core/object.hpp
+++ b/src/gallium/state_trackers/clover/core/object.hpp
@@ -27,6 +27,7 @@
 #include <functional>
 #include <vector>
 
+#undef __VEC__
 #include "CL/cl.h"
 
 #include "core/error.hpp"