diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index eb6d70352b..b47c77dec2 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -5865,7 +5865,7 @@ static list_T *string_to_list(const char *str, size_t len, const bool keepempty)
 }
 
 /// os_system wrapper. Handles 'verbose', :profile, and v:shell_error.
-void get_system_output_as_rettv(typval_T *argvars, typval_T *rettv, bool retlist)
+static void get_system_output_as_rettv(typval_T *argvars, typval_T *rettv, bool retlist)
 {
   proftime_T wait_time;
   bool profiling = do_profiling == PROF_YES;
@@ -5963,6 +5963,17 @@ void get_system_output_as_rettv(typval_T *argvars, typval_T *rettv, bool retlist
   }
 }
 
+/// f_system - the Vimscript system() function
+void f_system(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
+{
+  get_system_output_as_rettv(argvars, rettv, false);
+}
+
+void f_systemlist(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
+{
+  get_system_output_as_rettv(argvars, rettv, true);
+}
+
 /// Get a callback from "arg".  It can be a Funcref or a function name.
 bool callback_from_typval(Callback *const callback, const typval_T *const arg)
   FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
diff --git a/src/nvim/eval/funcs.c b/src/nvim/eval/funcs.c
index 0f8d8b8d76..8e68ac9b9a 100644
--- a/src/nvim/eval/funcs.c
+++ b/src/nvim/eval/funcs.c
@@ -7950,17 +7950,6 @@ static void f_synstack(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
   }
 }
 
-/// f_system - the Vimscript system() function
-static void f_system(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
-{
-  get_system_output_as_rettv(argvars, rettv, false);
-}
-
-static void f_systemlist(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
-{
-  get_system_output_as_rettv(argvars, rettv, true);
-}
-
 /// "tabpagebuflist()" function
 static void f_tabpagebuflist(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
 {