diff --git a/db/column_family_test.cc b/db/column_family_test.cc
index e776ae115..b6d6b3c6d 100644
--- a/db/column_family_test.cc
+++ b/db/column_family_test.cc
@@ -720,7 +720,7 @@ TEST_F(ColumnFamilyTest, DifferentWriteBufferSizes) {
   two.max_write_buffer_number = 10;
   two.min_write_buffer_number_to_merge = 3;
   two.max_write_buffer_number_to_maintain = 2;
-  three.write_buffer_size = 4096 * 22 + 2048;
+  three.write_buffer_size = 4096 * 22;
   three.arena_block_size = 4096;
   three.max_write_buffer_number = 10;
   three.min_write_buffer_number_to_merge = 4;
@@ -745,15 +745,15 @@ TEST_F(ColumnFamilyTest, DifferentWriteBufferSizes) {
   env_->SleepForMicroseconds(micros_wait_for_flush);
   AssertNumberOfImmutableMemtables({0, 1, 2, 0});
   AssertCountLiveLogFiles(4);
-  PutRandomData(3, 91, 990);
+  PutRandomData(3, 93, 990);
   env_->SleepForMicroseconds(micros_wait_for_flush);
   AssertNumberOfImmutableMemtables({0, 1, 2, 1});
   AssertCountLiveLogFiles(5);
-  PutRandomData(3, 90, 990);
+  PutRandomData(3, 88, 990);
   env_->SleepForMicroseconds(micros_wait_for_flush);
   AssertNumberOfImmutableMemtables({0, 1, 2, 2});
   AssertCountLiveLogFiles(6);
-  PutRandomData(3, 90, 990);
+  PutRandomData(3, 88, 990);
   env_->SleepForMicroseconds(micros_wait_for_flush);
   AssertNumberOfImmutableMemtables({0, 1, 2, 3});
   AssertCountLiveLogFiles(7);
@@ -765,11 +765,11 @@ TEST_F(ColumnFamilyTest, DifferentWriteBufferSizes) {
   WaitForFlush(2);
   AssertNumberOfImmutableMemtables({0, 1, 0, 3});
   AssertCountLiveLogFiles(9);
-  PutRandomData(3, 90, 990);
+  PutRandomData(3, 88, 990);
   WaitForFlush(3);
   AssertNumberOfImmutableMemtables({0, 1, 0, 0});
   AssertCountLiveLogFiles(10);
-  PutRandomData(3, 90, 990);
+  PutRandomData(3, 88, 990);
   env_->SleepForMicroseconds(micros_wait_for_flush);
   AssertNumberOfImmutableMemtables({0, 1, 0, 1});
   AssertCountLiveLogFiles(11);
@@ -777,9 +777,9 @@ TEST_F(ColumnFamilyTest, DifferentWriteBufferSizes) {
   WaitForFlush(1);
   AssertNumberOfImmutableMemtables({0, 0, 0, 1});
   AssertCountLiveLogFiles(5);
-  PutRandomData(3, 90 * 3, 990);
+  PutRandomData(3, 88 * 3, 990);
   WaitForFlush(3);
-  PutRandomData(3, 90 * 4, 990);
+  PutRandomData(3, 88 * 4, 990);
   WaitForFlush(3);
   AssertNumberOfImmutableMemtables({0, 0, 0, 0});
   AssertCountLiveLogFiles(12);