diff --git a/gaussian_splatting/submodules/simple-knn/simple_knn.cu b/gaussian_splatting/submodules/simple-knn/simple_knn.cu
index e72e4c9..ae05e28 100644
--- a/gaussian_splatting/submodules/simple-knn/simple_knn.cu
+++ b/gaussian_splatting/submodules/simple-knn/simple_knn.cu
@@ -23,6 +23,7 @@
 #define __CUDACC__
 #include <cooperative_groups.h>
 #include <cooperative_groups/reduce.h>
+#include <cfloat>
 
 namespace cg = cooperative_groups;