diff --git a/packages/babel-parser/test/fixtures/experimental/async-do-expressions/invalid-break/output.json b/packages/babel-parser/test/fixtures/experimental/async-do-expressions/invalid-break/output.json
index ff10d08731..f64b86d90b 100644
--- a/packages/babel-parser/test/fixtures/experimental/async-do-expressions/invalid-break/output.json
+++ b/packages/babel-parser/test/fixtures/experimental/async-do-expressions/invalid-break/output.json
@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":99,"loc":{"start":{"line":1,"column":0},"end":{"line":8,"column":2}},
   "errors": [
-    "SyntaxError: Unsyntactic break (5:8)"
+    "SyntaxError: Unsyntactic break. (5:8)"
   ],
   "program": {
     "type": "Program",
diff --git a/packages/babel-parser/test/fixtures/experimental/async-do-expressions/invalid-generators/output.json b/packages/babel-parser/test/fixtures/experimental/async-do-expressions/invalid-generators/output.json
index 3d6b9e7153..cde31923ba 100644
--- a/packages/babel-parser/test/fixtures/experimental/async-do-expressions/invalid-generators/output.json
+++ b/packages/babel-parser/test/fixtures/experimental/async-do-expressions/invalid-generators/output.json
@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":63,"loc":{"start":{"line":1,"column":0},"end":{"line":5,"column":2}},
   "errors": [
-    "SyntaxError: Missing semicolon (3:9)"
+    "SyntaxError: Missing semicolon. (3:9)"
   ],
   "program": {
     "type": "Program",
diff --git a/packages/babel-parser/test/fixtures/experimental/async-do-expressions/invalid-return/output.json b/packages/babel-parser/test/fixtures/experimental/async-do-expressions/invalid-return/output.json
index 9f66131f91..b18e07c5fb 100644
--- a/packages/babel-parser/test/fixtures/experimental/async-do-expressions/invalid-return/output.json
+++ b/packages/babel-parser/test/fixtures/experimental/async-do-expressions/invalid-return/output.json
@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":58,"loc":{"start":{"line":1,"column":0},"end":{"line":5,"column":2}},
   "errors": [
-    "SyntaxError: 'return' outside of function (3:4)"
+    "SyntaxError: 'return' outside of function. (3:4)"
   ],
   "program": {
     "type": "Program",