diff --git a/packages/components/package.json b/packages/components/package.json
index f0bf32f2..c2e4ef79 100644
--- a/packages/components/package.json
+++ b/packages/components/package.json
@@ -1,6 +1,7 @@
 {
   "name": "@quri/squiggle-components",
   "version": "0.2.9",
+  "licence": "MIT",
   "dependencies": {
     "antd": "^4.20.1",
     "react-ace": "10.1.0",
diff --git a/packages/squiggle-lang/package.json b/packages/squiggle-lang/package.json
index 500e428a..1a1e6a29 100644
--- a/packages/squiggle-lang/package.json
+++ b/packages/squiggle-lang/package.json
@@ -2,6 +2,7 @@
   "name": "@quri/squiggle-lang",
   "version": "0.2.5",
   "homepage": "https://squiggle-language.com",
+  "licence": "MIT",
   "scripts": {
     "build": "rescript build -with-deps",
     "bundle": "webpack",
diff --git a/packages/squiggle-lang/src/rescript/Distributions/SymbolicDist/SymbolicDist.res b/packages/squiggle-lang/src/rescript/Distributions/SymbolicDist/SymbolicDist.res
index 92249eae..997506d9 100644
--- a/packages/squiggle-lang/src/rescript/Distributions/SymbolicDist/SymbolicDist.res
+++ b/packages/squiggle-lang/src/rescript/Distributions/SymbolicDist/SymbolicDist.res
@@ -86,9 +86,10 @@ module Exponential = {
 
 module Cauchy = {
   type t = cauchy
-  let make = (local, scale): result<symbolicDist, string> => Ok(
-    #Cauchy({local: local, scale: scale}),
-  )
+  let make = (local, scale): result<symbolicDist, string> =>
+    scale > 0.0
+      ? Ok(#Cauchy({local: local, scale: scale}))
+      : Error("Cauchy distribution scale parameter must larger than 0.")
   let pdf = (x, t: t) => Jstat.Cauchy.pdf(x, t.local, t.scale)
   let cdf = (x, t: t) => Jstat.Cauchy.cdf(x, t.local, t.scale)
   let inv = (p, t: t) => Jstat.Cauchy.inv(p, t.local, t.scale)
diff --git a/packages/website/package.json b/packages/website/package.json
index a0e5fd33..501778cf 100644
--- a/packages/website/package.json
+++ b/packages/website/package.json
@@ -2,6 +2,7 @@
   "name": "squiggle-website",
   "version": "0.0.0",
   "private": true,
+  "license": "MIT",
   "scripts": {
     "start": "docusaurus start",
     "build": "docusaurus build",