diff --git a/src/particle_restart.cpp b/src/particle_restart.cpp
index b0f739bd06..be9eda77fb 100644
--- a/src/particle_restart.cpp
+++ b/src/particle_restart.cpp
@@ -24,8 +24,7 @@ namespace openmc {
 void read_particle_restart(Particle& p, RunMode& previous_run_mode)
 {
   // Write meessage
-  write_message("Loading particle restart file " +
-    settings::path_particle_restart + "...", 5);
+  write_message(5, "Loading particle restart file {}", settings::path_particle_restart);
 
   // Open file
   hid_t file_id = file_open(settings::path_particle_restart, 'r');