diff --git a/tools/scrambled_sobol32_direction_vector_generator.cpp b/tools/scrambled_sobol32_direction_vector_generator.cpp
index 5623704e..7addf4de 100644
--- a/tools/scrambled_sobol32_direction_vector_generator.cpp
+++ b/tools/scrambled_sobol32_direction_vector_generator.cpp
@@ -21,6 +21,7 @@
 #include "../library/include/rocrand/rocrand_sobol32_precomputed.h"
 #include <fstream>
 #include <iomanip>
+#include <cstdint>
 #include <iostream>
 #include <string>
 
diff --git a/tools/scrambled_sobol64_direction_vector_generator.cpp b/tools/scrambled_sobol64_direction_vector_generator.cpp
index 0aecd3ea..4189006c 100644
--- a/tools/scrambled_sobol64_direction_vector_generator.cpp
+++ b/tools/scrambled_sobol64_direction_vector_generator.cpp
@@ -21,6 +21,7 @@
 #include "../library/include/rocrand/rocrand_sobol64_precomputed.h"
 #include <fstream>
 #include <iomanip>
+#include <cstdint>
 #include <iostream>
 #include <string>
 
diff --git a/tools/sobol32_direction_vector_generator.cpp b/tools/sobol32_direction_vector_generator.cpp
index 16c43541..eb316c78 100644
--- a/tools/sobol32_direction_vector_generator.cpp
+++ b/tools/sobol32_direction_vector_generator.cpp
@@ -20,6 +20,7 @@
 
 #include <iostream>
 #include <fstream>
+#include <cstdint>
 #include <string>
 #include <iomanip>
 
diff --git a/tools/sobol64_direction_vector_generator.cpp b/tools/sobol64_direction_vector_generator.cpp
index e5209035..ecdbdc4e 100644
--- a/tools/sobol64_direction_vector_generator.cpp
+++ b/tools/sobol64_direction_vector_generator.cpp
@@ -20,6 +20,7 @@
 
 #include <iostream>
 #include <fstream>
+#include <cstdint>
 #include <string>
 #include <iomanip>