diff --git a/src/graphics/GraphicsConverter.cpp b/src/graphics/GraphicsConverter.cpp
index 97c4f68..8f05e62 100644
--- a/src/graphics/GraphicsConverter.cpp
+++ b/src/graphics/GraphicsConverter.cpp
@@ -262,7 +262,7 @@ static void build_script(FileName const & from_file,
 	LYXERR(Debug::GRAPHICS, "build_script ... ");
 	typedef Graph::EdgePath EdgePath;
 
-	script << "#!/usr/bin/env python\n"
+	script << "#!/usr/bin/env python2\n"
 		  "# -*- coding: utf-8 -*-\n"
 		  "import os, shutil, sys\n\n"
 		  "def unlinkNoThrow(file):\n"
diff --git a/src/support/os.cpp b/src/support/os.cpp
index 6984d2c..e6f17ff 100644
--- a/src/support/os.cpp
+++ b/src/support/os.cpp
@@ -26,7 +26,7 @@ string const python()
 {
 	// Use the -tt switch so that mixed tab/whitespace indentation is
 	// an error
-	static string const command("python -tt");
+	static string const command("python2 -tt");
 	return command;
 }