diff --git a/sys-utils/libcmt/include/libcmt/merkle.h b/sys-utils/libcmt/include/libcmt/merkle.h
index 0da02b2..08537c7 100644
--- a/sys-utils/libcmt/include/libcmt/merkle.h
+++ b/sys-utils/libcmt/include/libcmt/merkle.h
@@ -24,7 +24,7 @@
 #include "keccak.h"
 
 enum {
-    CMT_MERKLE_TREE_HEIGHT = 16, /**< merkle tree height */
+    CMT_MERKLE_TREE_HEIGHT = 63, /**< merkle tree height */
 };
 
 /** Opaque Merkle tree state.
diff --git a/sys-utils/libcmt/src/rollup.c b/sys-utils/libcmt/src/rollup.c
index bc7f658..0cc3c34 100644
--- a/sys-utils/libcmt/src/rollup.c
+++ b/sys-utils/libcmt/src/rollup.c
@@ -322,7 +322,6 @@ int cmt_rollup_finish(cmt_rollup_t *me, cmt_rollup_finish_t *finish) {
     }
     finish->next_request_type = reason;
     finish->next_request_payload_length = me->fromhost_data;
-    cmt_merkle_init(me->merkle);
     return 0;
 }
 
diff --git a/sys-utils/libcmt/tests/merkle.c b/sys-utils/libcmt/tests/merkle.c
index f552720..76e21f4 100644
--- a/sys-utils/libcmt/tests/merkle.c
+++ b/sys-utils/libcmt/tests/merkle.c
@@ -63,9 +63,7 @@ void test_merkle_push_back_and_get_root(void) {
 
     uint8_t root[CMT_KECCAK_LENGTH];
     cmt_merkle_get_root_hash(&merkle, root);
-    uint8_t expected_root[CMT_KECCAK_LENGTH] = {0x27, 0x33, 0xe5, 0x0f, 0x52, 0x6e, 0xc2, 0xfa, 0x19, 0xa2, 0x2b, 0x31,
-        0xe8, 0xed, 0x50, 0xf2, 0x3c, 0xd1, 0xfd, 0xf9, 0x4c, 0x91, 0x54, 0xed, 0x3a, 0x76, 0x09, 0xa2, 0xf1, 0xff,
-        0x98, 0x1f};
+    uint8_t expected_root[CMT_KECCAK_LENGTH] = {0x0a, 0x16, 0x29, 0x46, 0xe5, 0x61, 0x58, 0xba, 0xc0, 0x67, 0x3e, 0x6d, 0xd3, 0xbd, 0xfd, 0xc1, 0xe4, 0xa0, 0xe7, 0x74, 0x4a, 0x12, 0x0f, 0xdb, 0x64, 0x00, 0x50, 0xc8, 0xd7, 0xab, 0xe1, 0xc6};
     for (int i = 0; i < CMT_KECCAK_LENGTH; ++i) {
         assert(root[i] == expected_root[i]);
     }
@@ -85,9 +83,7 @@ void test_cmt_merkle_push_back_data_and_get_root(void) {
 
     uint8_t root[CMT_KECCAK_LENGTH];
     cmt_merkle_get_root_hash(&merkle, root);
-    uint8_t expected_root[CMT_KECCAK_LENGTH] = {0xe8, 0xe0, 0x47, 0x71, 0x14, 0xcb, 0x63, 0x0c, 0x4d, 0x14, 0xee, 0xa2,
-        0x49, 0xeb, 0x2c, 0x63, 0xd8, 0x4c, 0x9c, 0x68, 0x5d, 0xdf, 0x35, 0xd1, 0x37, 0x01, 0x9e, 0x65, 0x9a, 0xe2,
-        0x04, 0x18};
+    uint8_t expected_root[CMT_KECCAK_LENGTH] = {0x45, 0xa6, 0xfd, 0x68, 0x45, 0xc1, 0x7f, 0xe0, 0x21, 0x7f, 0xf0, 0xfd, 0x9b, 0x2c, 0x02, 0x1f, 0x2f, 0x2e, 0xe3, 0x9e, 0xe1, 0x99, 0x7d, 0xf3, 0x1f, 0x2d, 0x4c, 0x81, 0x7d, 0x3d, 0x1b, 0xf7};
     for (int i = 0; i < CMT_KECCAK_LENGTH; ++i) {
         assert(root[i] == expected_root[i]);
     }