diff --git a/src/backend/opencl/kernel/homography.hpp b/src/backend/opencl/kernel/homography.hpp
index b84e599..3034658 100644
--- a/src/backend/opencl/kernel/homography.hpp
+++ b/src/backend/opencl/kernel/homography.hpp
@@ -21,6 +21,7 @@
 
 #include <string>
 #include <vector>
+#include <cfloat>
 
 namespace opencl {
 namespace kernel {