diff --git a/src/random.cpp b/src/random.cpp
--- a/src/random.cpp
+++ b/src/random.cpp
@@ -528,18 +528,7 @@
 }
 
 uint64_t GetRand(uint64_t nMax) noexcept {
-    if (nMax == 0) {
-        return 0;
-    }
-
-    // The range of the random source must be a multiple of the modulus to give
-    // every possible output value an equal possibility
-    uint64_t nRange = (std::numeric_limits<uint64_t>::max() / nMax) * nMax;
-    uint64_t nRand = 0;
-    do {
-        GetRandBytes((uint8_t *)&nRand, sizeof(nRand));
-    } while (nRand >= nRange);
-    return (nRand % nMax);
+    return FastRandomContext().randrange(nMax);
 }
 
 int GetRandInt(int nMax) noexcept {