diff --git a/python/psi-api/src/icons/PythonPsiApiIcons.java b/python/psi-api/src/icons/PythonPsiApiIcons.java
index caeb62572701..c00205b59f26 100644
--- a/python/psi-api/src/icons/PythonPsiApiIcons.java
+++ b/python/psi-api/src/icons/PythonPsiApiIcons.java
@@ -5,8 +5,8 @@ import com.intellij.openapi.util.IconLoader;
 import javax.swing.*;
 
 /**
- * NOTE THIS FILE IS AUTO-GENERATED by the build/scripts/icons.gant
- * Don't repeat mistakes of others ;-)
+ * NOTE THIS FILE IS AUTO-GENERATED
+ * DO NOT EDIT IT BY HAND, run build/scripts/icons.gant instead
  */
 public class PythonPsiApiIcons {
   private static Icon load(String path) {
diff --git a/python/rest/src/icons/RestIcons.java b/python/rest/src/icons/RestIcons.java
index 7be4044574bc..cca5b1100e54 100644
--- a/python/rest/src/icons/RestIcons.java
+++ b/python/rest/src/icons/RestIcons.java
@@ -5,8 +5,8 @@ import com.intellij.openapi.util.IconLoader;
 import javax.swing.*;
 
 /**
- * NOTE THIS FILE IS AUTO-GENERATED by the build/scripts/icons.gant
- * Don't repeat mistakes of others ;-)
+ * NOTE THIS FILE IS AUTO-GENERATED
+ * DO NOT EDIT IT BY HAND, run build/scripts/icons.gant instead
  */
 public class RestIcons {
   private static Icon load(String path) {
diff --git a/python/src/icons/PythonIcons.java b/python/src/icons/PythonIcons.java
index 2cedb02ccc5c..c942e0ca02c6 100644
--- a/python/src/icons/PythonIcons.java
+++ b/python/src/icons/PythonIcons.java
@@ -5,8 +5,8 @@ import com.intellij.openapi.util.IconLoader;
 import javax.swing.*;
 
 /**
- * NOTE THIS FILE IS AUTO-GENERATED by the build/scripts/icons.gant
- * Don't repeat mistakes of others ;-)
+ * NOTE THIS FILE IS AUTO-GENERATED
+ * DO NOT EDIT IT BY HAND, run build/scripts/icons.gant instead
  */
 public class PythonIcons {
   private static Icon load(String path) {