diff --git a/contrib/epee/README.md b/contrib/epee/README.md
index 8157d3e56..2937c1264 100644
--- a/contrib/epee/README.md
+++ b/contrib/epee/README.md
@@ -1 +1 @@
-epee -  is a small library of helpers, wrappers, tools and and so on, used to make my life easier. 
+epee -  is a small library of helpers, wrappers, tools and so on, used to make my life easier. 
diff --git a/src/device/log.hpp b/src/device/log.hpp
index 92d174da1..21bd70149 100644
--- a/src/device/log.hpp
+++ b/src/device/log.hpp
@@ -48,7 +48,7 @@ namespace hw {
      *     - All computation done by device are checked by default device.
      *       Required IODUMMYCRYPT_HWDEVICE or IONOCRYPT_HWDEVICE for fully working
      * #define IODUMMYCRYPT_HWDEVICE 1
-     *     - It assumes sensitive data encryption is is off on device side. a XOR with 0x55. This allow Ledger Class to make check on clear value
+     *     - It assumes sensitive data encryption is off on device side. a XOR with 0x55. This allow Ledger Class to make check on clear value
      * #define IONOCRYPT_HWDEVICE 1
      *     - It assumes sensitive data encryption is off on device side.
      */
diff --git a/src/multisig/multisig_account_kex_impl.cpp b/src/multisig/multisig_account_kex_impl.cpp
index 9be760e78..5c68dd5dc 100644
--- a/src/multisig/multisig_account_kex_impl.cpp
+++ b/src/multisig/multisig_account_kex_impl.cpp
@@ -395,7 +395,7 @@ namespace multisig
   *    - Sanitizes input msgs.
   *    - Require uniqueness in: 'exclude_pubkeys'.
   *    - Requires each input pubkey be recommended by 'num_recommendations = expected_round' msg signers.
-  *      - For a final multisig key to be truly 'M-of-N', each of the the private key's components must be
+  *      - For a final multisig key to be truly 'M-of-N', each of the private key's components must be
   *        shared by (N - M + 1) signers.
   *    - Requires that msgs are signed by only keys in 'signers'.
   *    - Requires that each key in 'signers' recommends [num_signers - 2 CHOOSE (expected_round - 1)] pubkeys.