diff --git a/src/Permission.cxx b/src/Permission.cxx
index a31c3a48e..f9e59951c 100644
--- a/src/Permission.cxx
+++ b/src/Permission.cxx
@@ -131,7 +131,8 @@ initPermissions(const ConfigData &config)
 #endif
 }
 
-int getPermissionFromPassword(char const* password, unsigned* permission)
+int
+getPermissionFromPassword(const char *password, unsigned *permission) noexcept
 {
 	auto i = permission_passwords.find(password);
 	if (i == permission_passwords.end())
@@ -141,7 +142,8 @@ int getPermissionFromPassword(char const* password, unsigned* permission)
 	return 0;
 }
 
-unsigned getDefaultPermissions(void)
+unsigned
+getDefaultPermissions() noexcept
 {
 	return permission_default;
 }
diff --git a/src/Permission.hxx b/src/Permission.hxx
index ae6c7fd49..a9e8dd7f0 100644
--- a/src/Permission.hxx
+++ b/src/Permission.hxx
@@ -30,10 +30,11 @@ static constexpr unsigned PERMISSION_ADD = 2;
 static constexpr unsigned PERMISSION_CONTROL = 4;
 static constexpr unsigned PERMISSION_ADMIN = 8;
 
-int getPermissionFromPassword(char const* password, unsigned* permission);
+int
+getPermissionFromPassword(const char *password, unsigned *permission) noexcept;
 
 unsigned
-getDefaultPermissions();
+getDefaultPermissions() noexcept;
 
 #ifdef HAVE_UN
 unsigned