diff --git a/db/column_family_test.cc b/db/column_family_test.cc
index 11b36eec4..1ccb21a38 100644
--- a/db/column_family_test.cc
+++ b/db/column_family_test.cc
@@ -729,7 +729,7 @@ TEST(ColumnFamilyTest, DifferentCompactionStyles) {
   ASSERT_EQ(NumTableFilesAtLevel(0, 0), 0);
   ASSERT_EQ(NumTableFilesAtLevel(1, 0), 0);
   // write some new keys into level 0
-  PutRandomData(0, 100, 4096);
+  PutRandomData(0, 120, 4096);
   ASSERT_OK(Flush(0));
   WaitForCompaction();
   // remember number of files in each level
@@ -742,14 +742,14 @@ TEST(ColumnFamilyTest, DifferentCompactionStyles) {
 
   // SETUP column family "one" -- universal style
   for (int i = 0; i < one.level0_file_num_compaction_trigger - 1; ++i) {
-    PutRandomData(1, 12, 10000);
+    PutRandomData(1, 20, 10000);
     WaitForFlush(1);
     ASSERT_EQ(std::to_string(i + 1), FilesPerLevel(1));
   }
 
   // SETUP column family "two" -- level style with 4 levels
   for (int i = 0; i < two.level0_file_num_compaction_trigger - 1; ++i) {
-    PutRandomData(2, 12, 10000);
+    PutRandomData(2, 20, 10000);
     WaitForFlush(2);
     ASSERT_EQ(std::to_string(i + 1), FilesPerLevel(2));
   }