diff --git a/random.cpp b/random.cpp
index 625973c..67f4a22 100644
--- a/random.cpp
+++ b/random.cpp
@@ -8,7 +8,7 @@
 
 #include "gwp_asan/random.h"
 
-#include <ctime>
+#include <time.h>
 
 namespace gwp_asan {
 uint32_t getRandomUnsigned32() {
diff --git a/random.h b/random.h
index a71f3e5..5fcf30d 100644
--- a/random.h
+++ b/random.h
@@ -9,7 +9,7 @@
 #ifndef GWP_ASAN_RANDOM_H_
 #define GWP_ASAN_RANDOM_H_
 
-#include <cstdint>
+#include <stdint.h>
 
 namespace gwp_asan {
 // xorshift (32-bit output), extremely fast PRNG that uses arithmetic operations