diff --git a/R/community_graph.R b/R/community_graph.R
index ad52ea9..af2ae61 100644
--- a/R/community_graph.R
+++ b/R/community_graph.R
@@ -25,6 +25,7 @@ cov2prec <- function(Cov, tol=1e-4) {
               warning("Warning: Precision matrix not invertible, trying generalized inverse instead")
               ginv(Cov) })
     Precision[which(Precision == 0)] <- tol
+    Precision
 }