diff --git a/ih/imgproc.py b/ih/imgproc.py
index d8472545fd857530d95d492450e551d0fbae2f42..97a732ba974b6fcfe38d1253a94fa24b32c9a8a0 100644
--- a/ih/imgproc.py
+++ b/ih/imgproc.py
@@ -51,7 +51,7 @@ class ColorFilter(object):
             "=": lambda left, right: left == right,
             "+": lambda left, right: left + right,
             "-": lambda left, right: left - right,
-            "*": lambda left, right: left * right,
+            ".": lambda left, right: left * right,
             "/": lambda left, right: left / right,
             "max": lambda left, right: np.maximum(left, right),
             "min": lambda left, right: np.minimum(left, right),
diff --git a/ih/workflow.py b/ih/workflow.py
index 7965f8ab6e140e7bc51698d9e10dbde90134a7d8..79c5fa9173c79d620e300962813c20e491976c45 100644
--- a/ih/workflow.py
+++ b/ih/workflow.py
@@ -149,10 +149,6 @@ class Workflow(object):
                 elif str(arguments[arg]) in outputs:
                     arglist.append(outputs[str(arguments[arg])]["file"])
                 else:
-                    if "osg" in self.config:
-                        arglist.append("'" + str(arguments[arg]).replace("*","\*") + "'")
-                    else:
-                        arglist.append(str(arguments[arg])).replace("*","\*")
             self.jobs[dax][jobname].addArguments(*arglist)
             if dependencies:
                 for depend in dependencies: