diff --git a/applications/utilities/preProcessing/mapFieldsPar/createTimes.H b/applications/utilities/preProcessing/mapFieldsPar/createTimes.H
index f5fd92b607..10c7117cf6 100644
--- a/applications/utilities/preProcessing/mapFieldsPar/createTimes.H
+++ b/applications/utilities/preProcessing/mapFieldsPar/createTimes.H
@@ -1,11 +1,21 @@
     Info<< "\nCreate databases as time" << endl;
 
-    HashTable<string> srcOptions(args.options());
-    srcOptions.erase("case");
-    srcOptions.insert("case", fileName(rootDirSource/caseDirSource));
+    const string caseDirOrig = getEnv("FOAM_CASE");
+    const string caseNameOrig = getEnv("FOAM_CASENAME");
+    setEnv("FOAM_CASE", rootDirSource/caseDirSource, true);
+    setEnv("FOAM_CASENAME", caseDirSource, true);
+    Time runTimeSource
+    (
+        Time::controlDictName,
+        rootDirSource,
+        caseDirSource
+    );
+    setEnv("FOAM_CASE", caseDirOrig, true);
+    setEnv("FOAM_CASENAME", caseNameOrig, true);
 
-    argList argsSrc(args, srcOptions, false, false, false);
-
-    Time runTimeSource(Time::controlDictName, argsSrc);
-
-    Time runTimeTarget(Time::controlDictName, args);
+    Time runTimeTarget
+    (
+        Time::controlDictName,
+        rootDirTarget,
+        caseDirTarget
+    );