diff --git a/lib/ldb/wscript b/lib/ldb/wscript
index 5621b38e347..ba75d675d89 100755
--- a/lib/ldb/wscript
+++ b/lib/ldb/wscript
@@ -10,7 +10,7 @@ import sys, os
 # find the buildtools directory
 srcdir = '.'
 while not os.path.exists(srcdir+'/buildtools') and len(srcdir.split('/')) < 5:
-    srcdir = '../' + srcdir
+    srcdir = srcdir + '/..'
 sys.path.insert(0, srcdir + '/buildtools/wafsamba')
 
 import wafsamba, samba_dist, Options