diff --git a/R/rfid.R b/R/rfid.R
index 8a27b57..bc0d201 100644
--- a/R/rfid.R
+++ b/R/rfid.R
@@ -33,6 +33,7 @@
 #'   C. Regis, B.-a. Kim, B. Comte, N. Voirin: Estimating potential
 #'   infection transmission routes in hospital wards using wearable
 #'   proximity sensors. PloS One 8(9), e73970 306 (2013).
+#'   \doi{10.1371/journal.pone.0073970}
 #' @source
 #'   See the reference below.
 #'   Please cite it if you use this dataset in your work.
diff --git a/man/rfid.Rd b/man/rfid.Rd
index d5e559a..1213831 100644
--- a/man/rfid.Rd
+++ b/man/rfid.Rd
@@ -38,5 +38,6 @@ P. Vanhems, A. Barrat, C. Cattuto, J.-F. Pinton, N. Khanafer,
 C. Regis, B.-a. Kim, B. Comte, N. Voirin: Estimating potential
 infection transmission routes in hospital wards using wearable
 proximity sensors. PloS One 8(9), e73970 306 (2013).
+\doi{10.1371/journal.pone.0073970}
 }
 \keyword{datasets}