diff --git a/src/hydro_properties.c b/src/hydro_properties.c
index 276d6d837bcc164bbc006906b2e632041e033cae..1e7554f7d84220b8c962d60cc4538c685b5bad52 100644
--- a/src/hydro_properties.c
+++ b/src/hydro_properties.c
@@ -94,7 +94,7 @@ void hydro_props_print(const struct hydro_props *p) {
   message("Hydrodynamic kernel: %s with eta=%f (%.2f neighbours).", kernel_name,
           p->eta_neighbours, p->target_neighbours);
 
-  message("Hydrodynamic tolerance in h: %.5f (+/- %.4f neighbours).",
+  message("Hydrodynamic relative tolerance in h: %.5f (+/- %.4f neighbours).",
           p->h_tolerance, p->delta_neighbours);
 
   message("Hydrodynamic integration: CFL parameter: %.4f.", p->CFL_condition);