diff --git a/src/terminal/terminal.c b/src/terminal/terminal.c
index cb21e93f..434c7d4d 100644
--- a/src/terminal/terminal.c
+++ b/src/terminal/terminal.c
@@ -485,6 +485,10 @@ guac_terminal* guac_terminal_create(guac_client* client,
     /* Init terminal */
     guac_terminal_reset(term);
 
+    /* All mouse buttons are released */
+    term->mouse_mask = 0;
+
+    /* All keyboard modifiers are released */
     term->mod_alt   =
     term->mod_ctrl  =
     term->mod_shift = 0;
@@ -2104,4 +2108,4 @@ void guac_terminal_remove_user(guac_terminal* terminal, guac_user* user) {
 
     /* Remove the user from the terminal cursor */
     guac_common_cursor_remove_user(terminal->cursor, user);
-}
\ No newline at end of file
+}