1 files changed, 2 insertions, 0 deletions
diff --git a/lib/smalloc.js b/lib/smalloc.js
index ba042c6c4c..9e4fdc8882 100644
--- a/lib/smalloc.js
+++ b/lib/smalloc.js
@@ -19,6 +19,8 @@
 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
+'use strict';
+
 var smalloc = process.binding('smalloc');
 var kMaxLength = smalloc.kMaxLength;
 var util = require('util');