diff --git a/platform/platform-impl/src/com/intellij/ide/ui/laf/darcula/ui/DarculaButtonUI.java b/platform/platform-impl/src/com/intellij/ide/ui/laf/darcula/ui/DarculaButtonUI.java
index a4c18667b0cb..a7b8e7957eb7 100644
--- a/platform/platform-impl/src/com/intellij/ide/ui/laf/darcula/ui/DarculaButtonUI.java
+++ b/platform/platform-impl/src/com/intellij/ide/ui/laf/darcula/ui/DarculaButtonUI.java
@@ -19,7 +19,6 @@ import com.intellij.icons.AllIcons;
 import com.intellij.ide.ui.laf.darcula.DarculaLaf;
 import com.intellij.openapi.ui.GraphicsConfig;
 import com.intellij.openapi.util.SystemInfo;
-import com.intellij.openapi.util.registry.Registry;
 import com.intellij.util.ObjectUtils;
 import com.intellij.util.ui.GraphicsUtil;
 import com.intellij.util.ui.JBUI;
@@ -176,7 +175,7 @@ public class DarculaButtonUI extends BasicButtonUI {
   }
 
   public static boolean isHelpButton(JComponent button) {
-    return (SystemInfo.isMac || (SystemInfo.isWindows && Registry.is("ide.intellij.laf.win10.ui")))
+    return (SystemInfo.isMac || UIUtil.isUnderDarcula() || UIUtil.isUnderWin10LookAndFeel())
            && button instanceof JButton 
            && "help".equals(button.getClientProperty("JButton.buttonType"));
   }