1 files changed, 2 insertions, 1 deletions
diff --git a/src/random.h b/src/random.h
index 76bae5838d..f7c20ee4b0 100644
--- a/src/random.h
+++ b/src/random.h
@@ -11,6 +11,7 @@
 #include <span.h>
 #include <uint256.h>
 
+#include <bit>
 #include <cassert>
 #include <chrono>
 #include <cstdint>
@@ -203,7 +204,7 @@ public:
     {
         assert(range);
         --range;
-        int bits = CountBits(range);
+        int bits = std::bit_width(range);
         while (true) {
             uint64_t ret = randbits(bits);
             if (ret <= range) return ret;