diff --git a/DESCRIPTION b/DESCRIPTION
index 34eea9e..274b2c7 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -7,8 +7,8 @@ Authors@R: person("Benjamin", "Elbers", email = "be2239@columbia.edu",
 Description: Computes entropy-based segregation indices, as developed by
     Theil (1971) <isbn:978-0471858454>, with a focus on 
     the Mutual Information Index (M). The M, further described by 
-    Mora and Ruiz-Castillo (2011) <doi:https://doi.org/10.1111/j.1467-9531.2011.01237.x>
-    and Frankel and Volij (2011) <doi:https://doi.org/10.1016/j.jet.2010.10.008>, 
+    Mora and Ruiz-Castillo (2011) <doi:10.1111/j.1467-9531.2011.01237.x>
+    and Frankel and Volij (2011) <doi:10.1016/j.jet.2010.10.008>, 
     is a measure of segregation that is highly decomposable. The package provides
     tools to decompose the index by units and groups (local segregation), 
     and by within and between terms.