diff --git a/test/nvmf/target/filesystem.sh b/test/nvmf/target/filesystem.sh
index b96541de0..672eb88e2 100755
--- a/test/nvmf/target/filesystem.sh
+++ b/test/nvmf/target/filesystem.sh
@@ -5,7 +5,7 @@ rootdir=$(readlink -f $testdir/../../..)
 source $rootdir/test/common/autotest_common.sh
 source $rootdir/test/nvmf/common.sh
 
-MALLOC_BDEV_SIZE=64
+MALLOC_BDEV_SIZE=128
 MALLOC_BLOCK_SIZE=512
 
 rpc_py="$rootdir/scripts/rpc.py"