diff --git a/libguile/threads.c b/libguile/threads.c
index 281ff80f8..f3a464da6 100644
--- a/libguile/threads.c
+++ b/libguile/threads.c
@@ -21,10 +21,6 @@
 # include <config.h>
 #endif
 
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-
 #include "libguile/boehm-gc.h"
 #include "libguile/_scm.h"