1 files changed, 0 insertions, 1 deletions

diff --git a/src/lisp.h b/src/lisp.h
index c33c311b4ac..2508e2b804e 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -4218,7 +4218,6 @@ extern void syms_of_module (void);
 #endif
 
 /* Defined in thread.c.  */
-extern struct thread_state primary_thread;
 extern void mark_threads (void);
 extern void unmark_main_thread (void);