diff --git a/src/monocoque/gameloop/gameloop.c b/src/monocoque/gameloop/gameloop.c
index 4257144..c61f59e 100644
--- a/src/monocoque/gameloop/gameloop.c
+++ b/src/monocoque/gameloop/gameloop.c
@@ -232,7 +232,8 @@ int clilooper(SimDevice* devices, int numdevices, Parameters* p, SimData* simdat
     }
 
     fprintf(stdout, "\n");
-    simfree(simdata, simmap);
+    int r = simfree(simdata, simmap);
+    slogd("simfree returned %i", r);
 
     return 0;
 }
@@ -313,7 +314,8 @@ int looper(SimDevice* devices, int numdevices, Parameters* p)
     fflush(stdout);
     tcsetattr(0, TCSANOW, &canonicalmode);
 
-    simfree(simdata, simmap);
+    int r = simfree(simdata, simmap);
+    slogd("simfree returned %i", r);
     free(simdata);
     free(simmap);