diff --git a/Code/Mantid/Build/Tests/SConstruct b/Code/Mantid/Build/Tests/SConstruct
index a2204f399f592c3c479f768fceeb0f5b656959a2..a05783ec16f5c8c92acb5865c326965a6fcdde22 100644
--- a/Code/Mantid/Build/Tests/SConstruct
+++ b/Code/Mantid/Build/Tests/SConstruct
@@ -76,8 +76,6 @@ env.Append( CCFLAGS = cflags)
 
 f=open('../TestsToRun', 'r')
 
-libDirList.append('/usr/X11R6/lib')
-libList.append('X11')
 for test in f:
 	doth = '../' + test.strip() 
 	temp= test.split('/')