1 files changed, 1 insertions, 0 deletions

diff --git a/quantum/quantum.h b/quantum/quantum.h
index c7fce9a0f..f7b278cef 100644
--- a/quantum/quantum.h
+++ b/quantum/quantum.h
@@ -206,6 +206,7 @@ extern uint32_t default_layer_state;
 
 #define SEND_STRING(str) send_string_P(PSTR(str))
 extern const bool ascii_to_shift_lut[0x80];
+extern const bool ascii_to_alt_lut[0x80];
 extern const uint8_t ascii_to_keycode_lut[0x80];
 void send_string(const char *str);
 void send_string_with_delay(const char *str, uint8_t interval);