diff --git a/gtk2_ardour/wscript b/gtk2_ardour/wscript
index 80e54ef231..04a121d18d 100644
--- a/gtk2_ardour/wscript
+++ b/gtk2_ardour/wscript
@@ -311,7 +311,7 @@ def build(bld):
 		'''
 		obj.includes = '../libs/fst'
 		obj.target = 'ardour-3.0-vst'
-		obj.linkflags = ['-mwindows', '-Wl,--export-dynamic']
+		obj.linkflags = ['-mwindows', '-Wl,--export-dynamic', '-lpthread']
 		obj.defines = ['_POSIX_SOURCE', 'USE_WS_PREFIX']
 		obj.uselib = 'ALSA'
 		obj.uselib_local = '''libpbd libmidipp libtaglib libardour libardour_cp libgtkmm2ext libtaglib gtk2_ardour'''