diff --git a/gradle/debugger/hasPythonPackage.gradle b/gradle/debugger/hasPythonPackage.gradle
index 817832b5e9..0a1afb25ce 100644
--- a/gradle/debugger/hasPythonPackage.gradle
+++ b/gradle/debugger/hasPythonPackage.gradle
@@ -20,6 +20,7 @@ def checkPythonVersion(String pyCmd) {
 		exec {
 			commandLine pyCmd, "-c", "import sys; print('{0}.{1}'.format(*sys.version_info))"
 			standardOutput = stdout
+			standardError = null
 		}
 		def version = "$stdout".strip()
 		return version