diff --git a/src/common/init.c b/src/common/init.c
index ca9cf7c69..04c0d5b7b 100644
--- a/src/common/init.c
+++ b/src/common/init.c
@@ -439,6 +439,9 @@ void ffDestroyInstance(FFinstance* instance)
 void ffListFeatures()
 {
     fputs(
+        #ifdef FF_HAVE_THREADS
+            "threads\n"
+        #endif
         #ifdef FF_HAVE_LIBPCI
             "libpci\n"
         #endif