diff --git a/gsplat/cuda/csrc/backward.cuh b/gsplat/cuda/csrc/backward.cuh
index 14f983664..d4bc04c5c 100644
--- a/gsplat/cuda/csrc/backward.cuh
+++ b/gsplat/cuda/csrc/backward.cuh
@@ -1,5 +1,6 @@
 #include <cuda.h>
 #include <cuda_runtime.h>
+#include <cstdint>
 
 // for f : R(n) -> R(m), J in R(m, n),
 // v is cotangent in R(m), e.g. dL/df in R(m),
diff --git a/gsplat/cuda/csrc/forward.cuh b/gsplat/cuda/csrc/forward.cuh
index 168135c04..8cc08279d 100644
--- a/gsplat/cuda/csrc/forward.cuh
+++ b/gsplat/cuda/csrc/forward.cuh
@@ -1,5 +1,6 @@
 #include <cuda.h>
 #include <cuda_runtime.h>
+#include <cstdint>
 
 // compute the 2d gaussian parameters from 3d gaussian parameters
 void project_gaussians_forward_impl(
diff --git a/gsplat/cuda/csrc/helpers.cuh b/gsplat/cuda/csrc/helpers.cuh
index f3813ad0d..dd5be7e7b 100644
--- a/gsplat/cuda/csrc/helpers.cuh
+++ b/gsplat/cuda/csrc/helpers.cuh
@@ -1,5 +1,5 @@
 #include "config.h"
-#include "cuda_runtime.h"
+#include <cuda_runtime.h>
 #include "third_party/glm/glm/glm.hpp"
 #include "third_party/glm/glm/gtc/type_ptr.hpp"
 #include <iostream>
diff --git a/gsplat/cuda/csrc/serial_backward.cuh b/gsplat/cuda/csrc/serial_backward.cuh
index 58b5930f3..bbb516049 100644
--- a/gsplat/cuda/csrc/serial_backward.cuh
+++ b/gsplat/cuda/csrc/serial_backward.cuh
@@ -1,4 +1,5 @@
-#include "cuda_runtime.h"
+#include <cuda_runtime.h>
+#include <cstdint>
 
 __host__ __device__ float3 projectMean2DBackward(
     const float3 m, const float *proj, const float2 dL_dmean2D
diff --git a/gsplat/cuda/csrc/sh.cuh b/gsplat/cuda/csrc/sh.cuh
index 06946de4d..d51c18ac6 100644
--- a/gsplat/cuda/csrc/sh.cuh
+++ b/gsplat/cuda/csrc/sh.cuh
@@ -1,4 +1,4 @@
-#include "cuda_runtime.h"
+#include <cuda_runtime.h>
 #include <cooperative_groups.h>
 
 namespace cg = cooperative_groups;