diff --git a/index.js b/index.js
index 7729aaf873cef95e613f356d37cf55909e8b5a6d..9c248ebad8bd3c5ef07c5080da28072fb02b753c 100644
--- a/index.js
+++ b/index.js
@@ -157,7 +157,7 @@ function copySharedLibs (builds, folder, opts, cb) {
     if (err) return cb()
 
     var libs = files.filter(function (name) {
-      return /\.dylib$/.test(name) || /\.so(\.\d+)?$/.test(name) || /\.dll$/.test(name)
+      return /\.dylib$/.test(name) || /\.so(\.\d+)?$/.test(name) || /\.dll$/.test(name) || /\.sym$/.test(name)
     })
 
     loop()
@@ -167,9 +167,17 @@ function copySharedLibs (builds, folder, opts, cb) {
       var next = libs.shift()
       if (!next) return cb()
 
-      strip(path.join(builds, next), opts, function (err) {
-        if (err) return cb(err)
+      if (/\.sym$/.test(next)) {
         copy(path.join(builds, next), path.join(folder, next), loop)
+        return
+      }
+
+      dumpSymbols(path.join(builds, next), opts, function (err) {
+        if (err) return cb(err)
+        strip(path.join(builds, next), opts, function (err) {
+          if (err) return cb(err)
+          copy(path.join(builds, next), path.join(folder, next), loop)
+        })
       })
     }
   })
@@ -241,9 +249,13 @@ function build (target, runtime, opts, cb) {
       findBuild(opts.output, function (err, output) {
         if (err) return cb(err)
 
-        strip(output, opts, function (err) {
+        dumpSymbols(output, opts, function (err) {
           if (err) return cb(err)
-          cb(null, output)
+
+          strip(output, opts, function (err) {
+            if (err) return cb(err)
+            cb(null, output)
+          })
         })
       })
     })
@@ -263,11 +275,31 @@ function findBuild (dir, cb) {
   })
 }
 
+function dumpSymbols (file, opts, cb) {
+  var platform = os.platform()
+  if (!opts.strip) return cb()
+
+  var extensionRe = /\.(dylib|so|dll|node)$/
+  var input = platform === 'win32' ? file.replace(extensionRe, '.pdb') : file
+  var output = file.replace(extensionRe, '.sym')
+  var child = proc.spawn('dump_syms', [input, '-o', output], {
+    stdio: 'ignore',
+    shell: opts.shell,
+    windowsHide: true
+  })
+
+  child.on('exit', function (code) {
+    if (code) return cb(spawnError('dymp_syms', code))
+    cb()
+  })
+}
+
 function strip (file, opts, cb) {
   var platform = os.platform()
   if (!opts.strip || (platform !== 'darwin' && platform !== 'linux')) return cb()
 
-  var args = platform === 'darwin' ? [file, '-Sx'] : [file, '--strip-all']
+  var args = platform === 'darwin' ?
+    [file, '-Sx'] : [file, '--strip-all']
   var child = proc.spawn(opts.stripBin, args, {
     stdio: 'ignore',
     shell: opts.shell,