diff --git a/python/src/com/jetbrains/python/testing/pytest/PyTestCommandLineState.java b/python/src/com/jetbrains/python/testing/pytest/PyTestCommandLineState.java
index 572cfdeec152..3637f37ca91c 100644
--- a/python/src/com/jetbrains/python/testing/pytest/PyTestCommandLineState.java
+++ b/python/src/com/jetbrains/python/testing/pytest/PyTestCommandLineState.java
@@ -67,8 +67,7 @@ public class PyTestCommandLineState extends PythonTestCommandLineStateBase {
     assert script_params != null;
     String params = myConfiguration.getParams();
     if (!StringUtil.isEmptyOrSpaces(params)) {
-      for (String p : StringUtil.splitHonorQuotes(params, ' '))
-        script_params.addParameter(p);
+      script_params.addParametersString(params);
     }
 
     String keywords = myConfiguration.getKeywords();