diff --git a/packages/babel-parser/src/parser/comments.js b/packages/babel-parser/src/parser/comments.js
index 7f6b6e2de6e2..5ef57efe2fd9 100644
--- a/packages/babel-parser/src/parser/comments.js
+++ b/packages/babel-parser/src/parser/comments.js
@@ -91,7 +91,7 @@ export default class CommentsParser extends BaseParser {
       const lastComment = last(this.state.leadingComments);
 
       if (firstChild.type === "ObjectProperty") {
-        if (lastComment.start >= node.start) {
+        if (lastComment.start >= node.start && lastComment.end <= node.end) {
           if (this.state.commentPreviousNode) {
             for (j = 0; j < this.state.leadingComments.length; j++) {
               if (
diff --git a/packages/babel-parser/test/fixtures/comments/regression/10230/input.js b/packages/babel-parser/test/fixtures/comments/regression/10230/input.js
new file mode 100644
index 000000000000..131dbd7a00f7
--- /dev/null
+++ b/packages/babel-parser/test/fixtures/comments/regression/10230/input.js
@@ -0,0 +1,7 @@
+A = {
+  a: 42,
+  // One
+}
+
+// Two
+B
diff --git a/packages/babel-parser/test/fixtures/comments/regression/10230/output.json b/packages/babel-parser/test/fixtures/comments/regression/10230/output.json
new file mode 100644
index 000000000000..0c3dcfdf9744
--- /dev/null
+++ b/packages/babel-parser/test/fixtures/comments/regression/10230/output.json
@@ -0,0 +1,239 @@
+{
+  "type": "File",
+  "start": 0,
+  "end": 35,
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 7,
+      "column": 1
+    }
+  },
+  "program": {
+    "type": "Program",
+    "start": 0,
+    "end": 35,
+    "loc": {
+      "start": {
+        "line": 1,
+        "column": 0
+      },
+      "end": {
+        "line": 7,
+        "column": 1
+      }
+    },
+    "sourceType": "script",
+    "interpreter": null,
+    "body": [
+      {
+        "type": "ExpressionStatement",
+        "start": 0,
+        "end": 25,
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 0
+          },
+          "end": {
+            "line": 4,
+            "column": 1
+          }
+        },
+        "expression": {
+          "type": "AssignmentExpression",
+          "start": 0,
+          "end": 25,
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 0
+            },
+            "end": {
+              "line": 4,
+              "column": 1
+            }
+          },
+          "operator": "=",
+          "left": {
+            "type": "Identifier",
+            "start": 0,
+            "end": 1,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 0
+              },
+              "end": {
+                "line": 1,
+                "column": 1
+              },
+              "identifierName": "A"
+            },
+            "name": "A"
+          },
+          "right": {
+            "type": "ObjectExpression",
+            "start": 4,
+            "end": 25,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 4
+              },
+              "end": {
+                "line": 4,
+                "column": 1
+              }
+            },
+            "properties": [
+              {
+                "type": "ObjectProperty",
+                "start": 8,
+                "end": 13,
+                "loc": {
+                  "start": {
+                    "line": 2,
+                    "column": 2
+                  },
+                  "end": {
+                    "line": 2,
+                    "column": 7
+                  }
+                },
+                "method": false,
+                "key": {
+                  "type": "Identifier",
+                  "start": 8,
+                  "end": 9,
+                  "loc": {
+                    "start": {
+                      "line": 2,
+                      "column": 2
+                    },
+                    "end": {
+                      "line": 2,
+                      "column": 3
+                    },
+                    "identifierName": "a"
+                  },
+                  "name": "a"
+                },
+                "computed": false,
+                "shorthand": false,
+                "value": {
+                  "type": "NumericLiteral",
+                  "start": 11,
+                  "end": 13,
+                  "loc": {
+                    "start": {
+                      "line": 2,
+                      "column": 5
+                    },
+                    "end": {
+                      "line": 2,
+                      "column": 7
+                    }
+                  },
+                  "extra": {
+                    "rawValue": 42,
+                    "raw": "42"
+                  },
+                  "value": 42
+                }
+              }
+            ]
+          }
+        }
+      },
+      {
+        "type": "ExpressionStatement",
+        "start": 34,
+        "end": 35,
+        "loc": {
+          "start": {
+            "line": 7,
+            "column": 0
+          },
+          "end": {
+            "line": 7,
+            "column": 1
+          }
+        },
+        "expression": {
+          "type": "Identifier",
+          "start": 34,
+          "end": 35,
+          "loc": {
+            "start": {
+              "line": 7,
+              "column": 0
+            },
+            "end": {
+              "line": 7,
+              "column": 1
+            },
+            "identifierName": "B"
+          },
+          "name": "B"
+        },
+        "leadingComments": [
+          {
+            "type": "CommentLine",
+            "value": " Two",
+            "start": 27,
+            "end": 33,
+            "loc": {
+              "start": {
+                "line": 6,
+                "column": 0
+              },
+              "end": {
+                "line": 6,
+                "column": 6
+              }
+            }
+          }
+        ]
+      }
+    ],
+    "directives": []
+  },
+  "comments": [
+    {
+      "type": "CommentLine",
+      "value": " One",
+      "start": 17,
+      "end": 23,
+      "loc": {
+        "start": {
+          "line": 3,
+          "column": 2
+        },
+        "end": {
+          "line": 3,
+          "column": 8
+        }
+      }
+    },
+    {
+      "type": "CommentLine",
+      "value": " Two",
+      "start": 27,
+      "end": 33,
+      "loc": {
+        "start": {
+          "line": 6,
+          "column": 0
+        },
+        "end": {
+          "line": 6,
+          "column": 6
+        }
+      }
+    }
+  ]
+}
\ No newline at end of file