Index: trunk/ppSim/src/ppSimArguments.c
===================================================================
--- trunk/ppSim/src/ppSimArguments.c	(revision 12833)
+++ trunk/ppSim/src/ppSimArguments.c	(revision 12834)
@@ -55,4 +55,5 @@
     psMetadataAddStr(arguments, PS_LIST_TAIL, "-format", 0, "Camera format name", NULL);
     psMetadataAddStr(arguments, PS_LIST_TAIL, "-type", 0, "Exposure type (BIAS|DARK|FLAT|OBJECT)", NULL);
+    psMetadataAddStr(arguments, PS_LIST_TAIL, "-filter", 0, "Filter name", NULL);
     psMetadataAddF32(arguments, PS_LIST_TAIL, "-exptime", 0, "Exposure time (s)", NAN);
     psMetadataAddF32(arguments, PS_LIST_TAIL, "-biaslevel", 0, "Bias level (e)", NAN);
@@ -69,5 +70,5 @@
     }
 
-    if (*config->argc == 1 || !psArgumentParse(arguments, config->argc, config->argv)) {
+    if (*config->argc == 1 || !psArgumentParse(arguments, config->argc, config->argv) || *config->argc != 2) {
         usage(arguments, config);
     }
@@ -98,5 +99,8 @@
         usage(arguments, config);
     }
-    psMetadataAdd(config->arguments, PS_LIST_TAIL, "TYPE", 0, "Exposure type", type);
+    psMetadataAddS32(config->arguments, PS_LIST_TAIL, "TYPE", 0, "Exposure type", type);
+
+    const char *filter = psMetadataLookupStr(NULL, arguments, "-filter"); // Filter name
+    psMetadataAddStr(config->arguments, PS_LIST_TAIL, "FILTER", 0, "Filter name", filter);
 
     float expTime;
@@ -110,5 +114,5 @@
         }
     }
-    psMetadataAdd(config->arguments, PS_LIST_TAIL, "EXPTIME", 0, "Exposure time (s)", expTime);
+    psMetadataAddF32(config->arguments, PS_LIST_TAIL, "EXPTIME", 0, "Exposure time (s)", expTime);
 
     psMetadata *recipe = psMetadataLookupMetadata(NULL, config->recipes, PPSIM_RECIPE); // Recipe for ppSim
@@ -128,4 +132,7 @@
     valueArgRecipe(config, arguments, "-skyrate",     recipe, "SKY.RATE",     config->arguments);
 
+    psMetadataAddStr(config->arguments, PS_LIST_TAIL, "OUTPUT", 0, "Name of the output image",
+                     config->argv[1]);
+
     psFree(arguments);
 }