diff --git a/src/lib/log/tests/logger_manager_unittest.cc b/src/lib/log/tests/logger_manager_unittest.cc
index 6c009b2b17..3a5b76fa16 100644
--- a/src/lib/log/tests/logger_manager_unittest.cc
+++ b/src/lib/log/tests/logger_manager_unittest.cc
@@ -336,6 +336,11 @@ TEST_F(LoggerManagerTest, TooLargeMaxsize) {
     EXPECT_THROW_MSG(manager.process(spec), BadValue,
                      "expected maxsize < 2147483647MB, but instead got "
                      "18446744073709MB");
+
+    opt->maxsize = 1000000LL * (std::numeric_limits<int32_t>::max() + 1LL);  // bytes
+    EXPECT_THROW_MSG(manager.process(spec), BadValue,
+                     "expected maxsize < 2147483647MB, but instead got "
+                     "2147483648MB");
 }
 
 namespace { // begin unnamed namespace
diff --git a/src/lib/process/tests/log_parser_unittests.cc b/src/lib/process/tests/log_parser_unittests.cc
index f32580c4a8..96f6278dfc 100644
--- a/src/lib/process/tests/log_parser_unittests.cc
+++ b/src/lib/process/tests/log_parser_unittests.cc
@@ -496,9 +496,8 @@ TEST_F(LoggingTest, maxsize) {
     testMaxSize(TEST_MAX_SIZE, TEST_MAX_SIZE);
     testMaxSize(std::numeric_limits<int32_t>::max(), std::numeric_limits<int32_t>::max());
     testMaxSize(std::numeric_limits<uint32_t>::max(), std::numeric_limits<uint32_t>::max());
-    testMaxSize(std::numeric_limits<int64_t>::max(), std::numeric_limits<int64_t>::max());
-
-    // @todo: add a test for uint64_t when ElementPtr will allow it.
+    testMaxSize(1000LL * std::numeric_limits<int32_t>::max(), 1000LL * std::numeric_limits<int32_t>::max());
+    testMaxSize(1000000LL * std::numeric_limits<int32_t>::max(), 1000000LL * std::numeric_limits<int32_t>::max());
 }
 
 /// @todo Add tests for malformed logging configuration