diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 3f89b230..4d537a52 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -8,7 +8,7 @@ The `nix/` folder contains helper scripts for working with the ledger via Nix.
 Use `./nix/install.sh` to install the apps onto the ledger using Nix.
 
 ### Developing
-Use `nix/env.sh <s or x> to enter a shell where you can run `make` and it will just work. You can also pass a command instead, e.g. `nix/env.sh s --run "make clean SHELL=bash"`.
+Use `nix/env.sh <s or x>` to enter a shell where you can run `make` and it will just work. You can also pass a command instead, e.g. `nix/env.sh s --run "make clean SHELL=bash"`.
 
 For development, use `nix/watch.sh s make APP=<tezos_baking|tezos_wallet>` to incrementally build on every change. Be sure to `nix/env.sh s --run "make clean SHELL=bash"` if you start watching a different `APP`.
 
diff --git a/src/operations.c b/src/operations.c
index b8ca42be..6a8e1cdb 100644
--- a/src/operations.c
+++ b/src/operations.c
@@ -560,7 +560,7 @@ static inline bool parse_byte(
                         state->argument_length = MICHELSON_READ_LENGTH;
                     }
 
-		    OP_STEP
+                    OP_STEP
 
                     // Error on anything but a michelson sequence.
                     OP_STEP_REQUIRE_BYTE(MICHELSON_TYPE_SEQUENCE);