diff --git a/input/input.c b/input/input.c
index 7cb498921e..de776ad3ff 100644
--- a/input/input.c
+++ b/input/input.c
@@ -277,6 +277,16 @@ static const mp_key_name_t key_names[] = {
   { MOUSE_BTN7, "MOUSE_BTN7" },
   { MOUSE_BTN8, "MOUSE_BTN8" },
   { MOUSE_BTN9, "MOUSE_BTN9" },
+  { MOUSE_BTN10, "MOUSE_BTN10" },
+  { MOUSE_BTN11, "MOUSE_BTN11" },
+  { MOUSE_BTN12, "MOUSE_BTN12" },
+  { MOUSE_BTN13, "MOUSE_BTN13" },
+  { MOUSE_BTN14, "MOUSE_BTN14" },
+  { MOUSE_BTN15, "MOUSE_BTN15" },
+  { MOUSE_BTN16, "MOUSE_BTN16" },
+  { MOUSE_BTN17, "MOUSE_BTN17" },
+  { MOUSE_BTN18, "MOUSE_BTN18" },
+  { MOUSE_BTN19, "MOUSE_BTN19" },
   { MOUSE_BTN0_DBL, "MOUSE_BTN0_DBL" },
   { MOUSE_BTN1_DBL, "MOUSE_BTN1_DBL" },
   { MOUSE_BTN2_DBL, "MOUSE_BTN2_DBL" },
@@ -287,6 +297,16 @@ static const mp_key_name_t key_names[] = {
   { MOUSE_BTN7_DBL, "MOUSE_BTN7_DBL" },
   { MOUSE_BTN8_DBL, "MOUSE_BTN8_DBL" },
   { MOUSE_BTN9_DBL, "MOUSE_BTN9_DBL" },
+  { MOUSE_BTN10_DBL, "MOUSE_BTN10_DBL" },
+  { MOUSE_BTN11_DBL, "MOUSE_BTN11_DBL" },
+  { MOUSE_BTN12_DBL, "MOUSE_BTN12_DBL" },
+  { MOUSE_BTN13_DBL, "MOUSE_BTN13_DBL" },
+  { MOUSE_BTN14_DBL, "MOUSE_BTN14_DBL" },
+  { MOUSE_BTN15_DBL, "MOUSE_BTN15_DBL" },
+  { MOUSE_BTN16_DBL, "MOUSE_BTN16_DBL" },
+  { MOUSE_BTN17_DBL, "MOUSE_BTN17_DBL" },
+  { MOUSE_BTN18_DBL, "MOUSE_BTN18_DBL" },
+  { MOUSE_BTN19_DBL, "MOUSE_BTN19_DBL" },
   { JOY_AXIS1_MINUS, "JOY_UP" },
   { JOY_AXIS1_PLUS, "JOY_DOWN" },
   { JOY_AXIS0_MINUS, "JOY_LEFT" },
diff --git a/input/keycodes.h b/input/keycodes.h
index 31a9161826..45e7ec7d4b 100644
--- a/input/keycodes.h
+++ b/input/keycodes.h
@@ -140,7 +140,17 @@
 #define MOUSE_BTN7 (MOUSE_BASE+7)
 #define MOUSE_BTN8 (MOUSE_BASE+8)
 #define MOUSE_BTN9 (MOUSE_BASE+9)
-#define MOUSE_BTN_END (MOUSE_BASE+10)
+#define MOUSE_BTN10 (MOUSE_BASE+10)
+#define MOUSE_BTN11 (MOUSE_BASE+11)
+#define MOUSE_BTN12 (MOUSE_BASE+12)
+#define MOUSE_BTN13 (MOUSE_BASE+13)
+#define MOUSE_BTN14 (MOUSE_BASE+14)
+#define MOUSE_BTN15 (MOUSE_BASE+15)
+#define MOUSE_BTN16 (MOUSE_BASE+16)
+#define MOUSE_BTN17 (MOUSE_BASE+17)
+#define MOUSE_BTN18 (MOUSE_BASE+18)
+#define MOUSE_BTN19 (MOUSE_BASE+19)
+#define MOUSE_BTN_END (MOUSE_BASE+20)
 
 #define MOUSE_BASE_DBL (0x300|MP_NO_REPEAT_KEY)
 #define MOUSE_BTN0_DBL (MOUSE_BASE_DBL+0)
@@ -153,7 +163,17 @@
 #define MOUSE_BTN7_DBL (MOUSE_BASE_DBL+7)
 #define MOUSE_BTN8_DBL (MOUSE_BASE_DBL+8)
 #define MOUSE_BTN9_DBL (MOUSE_BASE_DBL+9)
-#define MOUSE_BTN_DBL_END (MOUSE_BASE_DBL+10)
+#define MOUSE_BTN10_DBL (MOUSE_BASE_DBL+10)
+#define MOUSE_BTN11_DBL (MOUSE_BASE_DBL+11)
+#define MOUSE_BTN12_DBL (MOUSE_BASE_DBL+12)
+#define MOUSE_BTN13_DBL (MOUSE_BASE_DBL+13)
+#define MOUSE_BTN14_DBL (MOUSE_BASE_DBL+14)
+#define MOUSE_BTN15_DBL (MOUSE_BASE_DBL+15)
+#define MOUSE_BTN16_DBL (MOUSE_BASE_DBL+16)
+#define MOUSE_BTN17_DBL (MOUSE_BASE_DBL+17)
+#define MOUSE_BTN18_DBL (MOUSE_BASE_DBL+18)
+#define MOUSE_BTN19_DBL (MOUSE_BASE_DBL+19)
+#define MOUSE_BTN_DBL_END (MOUSE_BASE_DBL+20)
 
 
 #endif // AR_DEFINES_ONLY