diff --git a/tools/phenotype_association/lps.xml b/tools/phenotype_association/lps.xml
index 94b7dc9e84d..ce00ab63c87 100644
--- a/tools/phenotype_association/lps.xml
+++ b/tools/phenotype_association/lps.xml
@@ -307,7 +307,8 @@ Technical Report. University of Wisconsin. August 10, 2010.
     title = {An interior-point method for large-scale l1-regularized logistic regression},
     journal = {Journal of Machine Learning Research},
     year = {2007},
-    volume = {2007}
+    volume = {8},
+    pages = {1519-1555},
 }</citation>
     <citation type="bibtex">@MISC{Shi08lasso-patternsearchalgorithm,
     author = {Weiliang Shi and Grace Wahba and Stephen Wright and Kristine Lee and Ronald Klein and Barbara Klein},