diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 6084104..ed8ae34 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -15,3 +15,7 @@ repos:
           - id: poetry-lock
           - id: poetry-export
             args: ["-f", "requirements.txt", "-o", "requirements.txt"]
+    - repo: https://github.com/psf/black
+      rev: 23.1.0
+      hooks:
+          - id: black
diff --git a/Makefile b/Makefile
index f754bc5..dd19abc 100644
--- a/Makefile
+++ b/Makefile
@@ -2,4 +2,4 @@
 publish:
 	poetry publish --build --repository gitea
 clean:
-	find . -type f -name "*.py[co]" -delete -or -type d -name "__pycache__" -delete -or -type -name "dist" -delete
\ No newline at end of file
+	find . -type f -name "*.py[co]" -delete -or -type d -name "__pycache__" -delete -or -type -name "dist" -delete
diff --git a/README.md b/README.md
index 26132af..3bdb955 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Projector is a personal tool I user to control my _Panasonic PT-RW330_ projector
 
 ## Build wheels
 
-Building the project can be done using poetry. 
+Building the project can be done using poetry.
 
 ```shell
 $ poetry build
@@ -32,4 +32,4 @@ Put projector and scalar in sleep mode:
 
 ```shell
 $ projectorpi --sleep
-```
\ No newline at end of file
+```
diff --git a/src/projectorpi/serialdevice.py b/src/projectorpi/serialdevice.py
index f7cd215..ad03caf 100644
--- a/src/projectorpi/serialdevice.py
+++ b/src/projectorpi/serialdevice.py
@@ -12,7 +12,6 @@ class SerialDevice:
         self.prefix = ""
 
     def send_command(self, command: str) -> str:
-
         with Serial(self.serial_port, self.baudrate, timeout=3) as s:
             if self.verbose:
                 print(self.prefix, "send:", command)