diff --git a/src/feature/dirauth/authmode.c b/src/feature/dirauth/authmode.c
index 29fcc6d1a9..2292d1a417 100644
--- a/src/feature/dirauth/authmode.c
+++ b/src/feature/dirauth/authmode.c
@@ -26,6 +26,15 @@ authdir_mode(const or_options_t *options)
 {
   return options->AuthoritativeDir != 0;
 }
+
+/* Return true iff we believe ourselves to be a v3 authoritative directory
+ * server. */
+int
+authdir_mode_v3(const or_options_t *options)
+{
+  return authdir_mode(options) && options->V3AuthoritativeDir != 0;
+}
+
 /** Return true iff we are an authoritative directory server that is
  * authoritative about receiving and serving descriptors of type
  * <b>purpose</b> on its dirport.
diff --git a/src/feature/dirauth/authmode.h b/src/feature/dirauth/authmode.h
index 11bc40d8d1..c1134a4c2e 100644
--- a/src/feature/dirauth/authmode.h
+++ b/src/feature/dirauth/authmode.h
@@ -14,19 +14,12 @@
 #ifdef HAVE_MODULE_DIRAUTH
 
 int authdir_mode(const or_options_t *options);
+int authdir_mode_v3(const or_options_t *options);
 int authdir_mode_handles_descs(const or_options_t *options, int purpose);
 int authdir_mode_publishes_statuses(const or_options_t *options);
 int authdir_mode_tests_reachability(const or_options_t *options);
 int authdir_mode_bridge(const or_options_t *options);
 
-/* Return true iff we believe ourselves to be a v3 authoritative directory
- * server. */
-static inline int
-authdir_mode_v3(const or_options_t *options)
-{
-  return authdir_mode(options) && options->V3AuthoritativeDir != 0;
-}
-
 /* Is the dirauth module enabled? */
 #define have_module_dirauth() (1)