diff --git a/CHANGELOG.md b/CHANGELOG.md
index b4794b2..d903491 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## (unreleased)
 
+### Bug Fixes
+
+* fixes ASP syntax issues caused by hyphens in variable names by replacing all user-defined variables with `X1`, `X2`, etc.
+
 ## 3.1.0 (2017-11-17)
 
 ### Changes