diff --git a/src/bloom.cpp b/src/bloom.cpp
--- a/src/bloom.cpp
+++ b/src/bloom.cpp
@@ -264,8 +264,8 @@
         if (nGeneration == 4) {
             nGeneration = 1;
         }
-        uint64_t nGenerationMask1 = -uint64_t(nGeneration & 1);
-        uint64_t nGenerationMask2 = -uint64_t(nGeneration >> 1);
+        uint64_t nGenerationMask1 = 0 - (uint64_t)(nGeneration & 1);
+        uint64_t nGenerationMask2 = 0 - (uint64_t)(nGeneration >> 1);
         /* Wipe old entries that used this generation number. */
         for (uint32_t p = 0; p < data.size(); p += 2) {
             uint64_t p1 = data[p], p2 = data[p + 1];
diff --git a/src/test/util_tests.cpp b/src/test/util_tests.cpp
--- a/src/test/util_tests.cpp
+++ b/src/test/util_tests.cpp
@@ -887,7 +887,8 @@
     BOOST_CHECK(ParseInt32("1234", &n) && n == 1234);
     BOOST_CHECK(ParseInt32("01234", &n) && n == 1234); // no octal
     BOOST_CHECK(ParseInt32("2147483647", &n) && n == 2147483647);
-    BOOST_CHECK(ParseInt32("-2147483648", &n) && n == -2147483648);
+    // (-2147483647 - 1) equals INT_MIN
+    BOOST_CHECK(ParseInt32("-2147483648", &n) && n == (-2147483647 - 1));
     BOOST_CHECK(ParseInt32("-1234", &n) && n == -1234);
     // Invalid values
     BOOST_CHECK(!ParseInt32("", &n));