1 files changed, 4 insertions, 0 deletions
diff --git a/src/paramcheck.c b/src/paramcheck.c
index d3629fe..86b5c97 100644
--- a/src/paramcheck.c
+++ b/src/paramcheck.c
@@ -26,4 +26,8 @@ dissipation_paramcheck (CCTK_ARGUMENTS)
       CCTK_PARAMWARN ("The aliased function \"HorizonRadiusInDirection\" must be defined when the parameter \"extra_dissipation_in_horizons\" is set and one of the sources is AHFinderDirect");
     }
   }
+  if (respect_emask && !use_mask)
+  {
+    CCTK_PARAMWARN ("You can only respect the emask if it is used (use_mask)");
+  }
 }