diff --git a/ERRATA.md b/ERRATA.md
index 296ead5..c5b0038 100644
--- a/ERRATA.md
+++ b/ERRATA.md
@@ -22,6 +22,8 @@ page 103, R code 4.50: The ``post`` object implied here is the one from R code 4
 
 page 125: Below R code 5.4, "The posterior mean for age at marriage, ba, ..." 'ba' should be 'bA'.
 
+page 155: Overthinking box, second paragraph: "equivalent to the original m5.13" should be "... m5.15"
+
 page 156, near top: "In fact, if you try to include a dummy variable for apes, you'll up with..." Should be "you'll end up with".
 
 page 196-200: The data.frame d has 17 cases. However in the discussion of the four models (on e.g. page 200), the text repeatedly refers to 12 cases.