diff --git a/plugins/devkit/src/run/PluginRunConfiguration.java b/plugins/devkit/src/run/PluginRunConfiguration.java
index 4b0d6a7e0072..9dff21bb8474 100644
--- a/plugins/devkit/src/run/PluginRunConfiguration.java
+++ b/plugins/devkit/src/run/PluginRunConfiguration.java
@@ -110,15 +110,7 @@ public class PluginRunConfiguration extends RunConfigurationBase implements Modu
 
         fillParameterList(vm, VM_PARAMETERS);
         fillParameterList(params.getProgramParametersList(), PROGRAM_PARAMETERS);
-        if (!VM_PARAMETERS.contains("-Xms")) {
-          vm.add("-Xms128m");
-        }
-        if (!VM_PARAMETERS.contains("-Xmx")) {
-          vm.add("-Xmx512m");
-        }
-        if (!VM_PARAMETERS.contains("-XX:MaxPermSize")) {
-          vm.add("-XX:MaxPermSize=250m");
-        }
+
         @NonNls String libPath = ideaJdk.getHomePath() + File.separator + "lib";
         vm.add("-Xbootclasspath/a:" + libPath + File.separator + "boot.jar");