diff --git a/Source/Tests/SConscript b/Source/Tests/SConscript
index 5843116f..b07b9645 100644
--- a/Source/Tests/SConscript
+++ b/Source/Tests/SConscript
@@ -76,6 +76,7 @@ extralibs = Split("""
 	dl
 	gdi32
 	iconv
+	pthread
 	user32
 """)