diff --git a/packages/pass-style/src/error.js b/packages/pass-style/src/error.js
index 2e25fd5c9f..aacd46fe27 100644
--- a/packages/pass-style/src/error.js
+++ b/packages/pass-style/src/error.js
@@ -143,7 +143,8 @@ export const checkValidPassableErrorPropertyDesc = (
     }
   }
   return (
-    reject && reject(X`Passable Error has extra unpassed property ${q(propName)}`)
+    reject &&
+    reject(X`Passable Error has extra unpassed property ${q(propName)}`)
   );
 };
 harden(checkValidPassableErrorPropertyDesc);
@@ -178,7 +179,9 @@ const checkValidPassableError = (
   if (!('message' in descs)) {
     return (
       reject &&
-      reject(X`Passable Error must have an own "message" string property: ${candidate}`)
+      reject(
+        X`Passable Error must have an own "message" string property: ${candidate}`,
+      )
     );
   }
 
diff --git a/packages/pass-style/test/test-passStyleOf.js b/packages/pass-style/test/test-passStyleOf.js
index 85667ee87a..0560223e55 100644
--- a/packages/pass-style/test/test-passStyleOf.js
+++ b/packages/pass-style/test/test-passStyleOf.js
@@ -38,7 +38,8 @@ test('some passStyleOf rejections', t => {
     delete hairlessError[k];
   }
   t.throws(() => passStyleOf(harden(hairlessError)), {
-    message: 'Passable Error must have an own "message" string property: "[Error: ]"',
+    message:
+      'Passable Error must have an own "message" string property: "[Error: ]"',
   });
 
   t.throws(() => passStyleOf(Symbol('unique')), {
@@ -419,8 +420,7 @@ test('Unexpected stack on errors', t => {
   Object.freeze(err);
 
   t.throws(() => passStyleOf(err), {
-    message:
-      'Passable Error "stack" own property must be a string: {}',
+    message: 'Passable Error "stack" own property must be a string: {}',
   });
   err.stack.foo = 42;
 });