diff --git a/lib/index.js b/lib/index.js
index 47574f2..cc4e756 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -10,11 +10,14 @@ module.exports = function(contents, sourcemap) {
   const id = genId(this.resourcePath)
   let hasComponent = false
 
-  const ast = acorn.parse(contents, {
-    sourceType: 'module',
-    locations: true,
-    sourceFile: this.resourcePath
-  })
+  const parseOptions = {sourceType: 'module'}
+
+  if (this.sourceMap) {
+    parseOptions.locations = true
+    parseOptions.sourceFile = this.resourcePath
+  }
+
+  const ast = acorn.parse(contents, parseOptions)
 
   const res = estraverse.replace(ast, {
     enter (node, parent) {