diff --git a/kitty/keys.h b/kitty/keys.h
index e561077d4..a1fef8048 100644
--- a/kitty/keys.h
+++ b/kitty/keys.h
@@ -487,7 +487,7 @@ static inline const char*
 key_lookup(uint8_t key, KeyboardMode mode, uint8_t mods, uint8_t action) {
   switch(mode) {
     case NORMAL:
-      switch(action & 3) { case 3: return NULL; 
+      switch(action & 3) { case 3: return NULL;
         case 0: // RELEASE
           return NULL;
 
@@ -2891,7 +2891,7 @@ key_lookup(uint8_t key, KeyboardMode mode, uint8_t mods, uint8_t action) {
 
 
       case APPLICATION:
-        switch(action & 3) { case 3: return NULL; 
+        switch(action & 3) { case 3: return NULL;
           case 0: // RELEASE
             return NULL;
 
@@ -5295,7 +5295,7 @@ key_lookup(uint8_t key, KeyboardMode mode, uint8_t mods, uint8_t action) {
 
 
         case EXTENDED:
-          switch(action & 3) { case 3: return NULL; 
+          switch(action & 3) { case 3: return NULL;
             case 0: // RELEASE
               switch (mods & 0xf) {
                   case 0x0:
diff --git a/kitty/keys.py b/kitty/keys.py
index a627aa072..b4e5d7864 100644
--- a/kitty/keys.py
+++ b/kitty/keys.py
@@ -281,7 +281,7 @@ def generate_key_table():
         i += 1
         ind('case {}:'.format(mode))
         i += 1
-        ind('switch(action & 3) { case 3: return NULL; ')
+        ind('switch(action & 3) { case 3: return NULL;')
         for action in (defines.GLFW_RELEASE, defines.GLFW_PRESS, defines.GLFW_REPEAT):
             i += 1
             ind('case {}: // {}'.format(action, 'RELEASE PRESS REPEAT'.split()[action]))