diff --git a/packages/babel-plugin-transform-computed-properties/test/fixtures/regression/7144/actual.js b/packages/babel-plugin-transform-computed-properties/test/fixtures/regression/7144/actual.js
new file mode 100644
index 0000000000..988e22c813
--- /dev/null
+++ b/packages/babel-plugin-transform-computed-properties/test/fixtures/regression/7144/actual.js
@@ -0,0 +1,4 @@
+export default {
+  [a]: b,
+  [c]: d
+};
\ No newline at end of file
diff --git a/packages/babel-plugin-transform-computed-properties/test/fixtures/regression/7144/expected.js b/packages/babel-plugin-transform-computed-properties/test/fixtures/regression/7144/expected.js
new file mode 100644
index 0000000000..ba3cebe17f
--- /dev/null
+++ b/packages/babel-plugin-transform-computed-properties/test/fixtures/regression/7144/expected.js
@@ -0,0 +1,3 @@
+var _a$c;
+
+export default (_a$c = {}, babelHelpers.defineProperty(_a$c, a, b), babelHelpers.defineProperty(_a$c, c, d), _a$c);
diff --git a/packages/babel-plugin-transform-computed-properties/test/fixtures/regression/7144/options.json b/packages/babel-plugin-transform-computed-properties/test/fixtures/regression/7144/options.json
new file mode 100644
index 0000000000..1f70f9c5c9
--- /dev/null
+++ b/packages/babel-plugin-transform-computed-properties/test/fixtures/regression/7144/options.json
@@ -0,0 +1,3 @@
+{
+  "plugins": ["external-helpers", "transform-computed-properties"]
+}
diff --git a/packages/babel-traverse/src/path/modification.js b/packages/babel-traverse/src/path/modification.js
index 4eaf93543e..77cb382160 100644
--- a/packages/babel-traverse/src/path/modification.js
+++ b/packages/babel-traverse/src/path/modification.js
@@ -17,7 +17,8 @@ export function insertBefore(nodes) {
   if (
     this.parentPath.isExpressionStatement() ||
     this.parentPath.isLabeledStatement() ||
-    this.parentPath.isExportDeclaration()
+    this.parentPath.isExportNamedDeclaration() ||
+    (this.parentPath.isExportDefaultDeclaration() && this.isDeclaration())
   ) {
     return this.parentPath.insertBefore(nodes);
   } else if (
@@ -98,7 +99,8 @@ export function insertAfter(nodes) {
   if (
     this.parentPath.isExpressionStatement() ||
     this.parentPath.isLabeledStatement() ||
-    this.parentPath.isExportDeclaration()
+    this.parentPath.isExportNamedDeclaration() ||
+    (this.parentPath.isExportDefaultDeclaration() && this.isDeclaration())
   ) {
     return this.parentPath.insertAfter(nodes);
   } else if (
diff --git a/packages/babel-traverse/test/modification.js b/packages/babel-traverse/test/modification.js
index e526b4d6b4..3691608249 100644
--- a/packages/babel-traverse/test/modification.js
+++ b/packages/babel-traverse/test/modification.js
@@ -143,14 +143,13 @@ describe("modification", function() {
       });
 
       it("the exported expression", function() {
-        const bodyPath = getPath("export default 2;", {
+        const declPath = getPath("export default 2;", {
           sourceType: "module",
-        }).parentPath;
-        const path = bodyPath.get("body.0.declaration");
+        });
+        const path = declPath.get("declaration");
         path.insertBefore(t.identifier("x"));
 
-        assert.equal(bodyPath.get("body").length, 2);
-        assert.deepEqual(bodyPath.get("body.0").node, t.identifier("x"));
+        assert.equal(generateCode(declPath), "export default (x, 2);");
       });
     });
   });
@@ -236,8 +235,10 @@ describe("modification", function() {
         const path = bodyPath.get("body.0.declaration");
         path.insertAfter(t.identifier("x"));
 
-        assert.equal(bodyPath.get("body").length, 2);
-        assert.deepEqual(bodyPath.get("body.1").node, t.identifier("x"));
+        assert.equal(
+          generateCode({ parentPath: bodyPath }),
+          "var _temp;\n\nexport default (_temp = 2, x, _temp);",
+        );
       });
     });
   });