diff --git a/build.xml b/build.xml
index cf640ec135ef..8e6bdbcfa226 100644
--- a/build.xml
+++ b/build.xml
@@ -17,7 +17,7 @@
     <sequential>
       <java failonerror="true" jar="${project.home}/lib/ant/lib/ant-launcher.jar" fork="true">
         <jvmarg line="-Xmx612m -XX:MaxPermSize=152m"/>
-
+        <sysproperty key="java.awt.headless" value="true"/>
         <arg line="&quot;-Dgant.script=@{script}&quot;"/>
         <arg line="&quot;-Dteamcity.build.tempDir=${tmp.dir}&quot;"/>
         <arg line="&quot;-Didea.test.group=ALL_EXCLUDE_DEFINED&quot;"/>
diff --git a/build/scripts/utils.gant b/build/scripts/utils.gant
index e6785c6eb389..a48f2cea9832 100644
--- a/build/scripts/utils.gant
+++ b/build/scripts/utils.gant
@@ -757,6 +757,7 @@ binding.setVariable("buildWinLauncher", { String ch, String inputPath, String ou
   }
 
   ant.java(classname: "com.pme.launcher.LauncherGeneratorMain", fork: "true") {
+    sysproperty(key: "java.awt.headless", value: "true")
     arg(value: inputPath)
     arg(value: appInfo)
     arg(value: "$ch/native/WinLauncher/WinLauncher/resource.h")
diff --git a/python/build.xml b/python/build.xml
index 4136622d1caf..22f999027050 100644
--- a/python/build.xml
+++ b/python/build.xml
@@ -18,7 +18,7 @@
     <sequential>
       <java failonerror="true" jar="${project.home}/lib/ant/lib/ant-launcher.jar" fork="true">
         <jvmarg line="-Xmx612m -XX:MaxPermSize=152m -Didea.build.number=${idea.build.number} &quot;-DideaPath=${idea.path}&quot;"/>
-
+        <sysproperty key="java.awt.headless" value="true"/>
         <arg line="&quot;-Dgant.script=@{script}&quot;"/>
         <arg line="&quot;-Dteamcity.build.tempDir=${tmp.dir}&quot;"/>
         <arg line="&quot;-Didea.build.number=${idea.build.number}&quot;"/>