diff --git a/kitty/glfw.c b/kitty/glfw.c
index 1aea6f5cc..04f944fb1 100644
--- a/kitty/glfw.c
+++ b/kitty/glfw.c
@@ -1079,7 +1079,7 @@ set_custom_cursor(PyObject *self UNUSED, PyObject *args) {
 
 #ifdef __APPLE__
 void
-get_cocoa_key_equivalent(int key, int mods, char cocoa_key, size_t key_sz, int *cocoa_mods) {
+get_cocoa_key_equivalent(int key, int mods, char *cocoa_key, size_t key_sz, int *cocoa_mods) {
     glfwGetCocoaKeyEquivalent(key, mods, cocoa_key, key_sz, cocoa_mods);
 }
 
diff --git a/kitty/state.h b/kitty/state.h
index 5b4738ae1..484d32bd3 100644
--- a/kitty/state.h
+++ b/kitty/state.h
@@ -225,7 +225,7 @@ void set_titlebar_color(OSWindow *w, color_type color);
 FONTS_DATA_HANDLE load_fonts_data(double, double, double);
 void send_prerendered_sprites_for_window(OSWindow *w);
 #ifdef __APPLE__
-void get_cocoa_key_equivalent(int, int, char key, size_t key_sz, int*);
+void get_cocoa_key_equivalent(int, int, char *key, size_t key_sz, int*);
 typedef enum {
     PREFERENCES_WINDOW = 1,
     NEW_OS_WINDOW = 2,