diff --git a/python/src/com/jetbrains/python/run/PythonRunConfigurationForm.java b/python/src/com/jetbrains/python/run/PythonRunConfigurationForm.java
index cffb2af24ae9..c3b914001b9a 100644
--- a/python/src/com/jetbrains/python/run/PythonRunConfigurationForm.java
+++ b/python/src/com/jetbrains/python/run/PythonRunConfigurationForm.java
@@ -62,7 +62,7 @@ public class PythonRunConfigurationForm implements PythonRunConfigurationParams
   }
 
   public void setScriptName(String scriptName) {
-    myScriptTextField.setText(FileUtil.toSystemDependentName(scriptName));
+    myScriptTextField.setText(scriptName == null ? "" : FileUtil.toSystemDependentName(scriptName));
   }
 
   public String getScriptParameters() {