diff --git a/src/app/config/confparse.c b/src/app/config/confparse.c
index 3615004663..2c8779bbea 100644
--- a/src/app/config/confparse.c
+++ b/src/app/config/confparse.c
@@ -614,7 +614,7 @@ config_var_is_listable(const config_var_t *var)
  * This option may be set because a variable is hidden, or because it is
  * derived from another variable which will already be written out.
  **/
-bool
+static bool
 config_var_is_dumpable(const config_var_t *var)
 {
   if (config_var_is_derived(var)) {
diff --git a/src/app/config/confparse.h b/src/app/config/confparse.h
index b5d0eb3bae..054348d8d4 100644
--- a/src/app/config/confparse.h
+++ b/src/app/config/confparse.h
@@ -191,7 +191,6 @@ void warn_deprecated_option(const char *what, const char *why);
 
 bool config_var_is_settable(const config_var_t *var);
 bool config_var_is_listable(const config_var_t *var);
-bool config_var_is_dumpable(const config_var_t *var);
 
 /* Helper macros to compare an option across two configuration objects */
 #define CFG_EQ_BOOL(a,b,opt) ((a)->opt == (b)->opt)