--- a/js/src/frontend/NameAnalysisTypes.h
+++ b/js/src/frontend/NameAnalysisTypes.h
@@ -31,17 +31,17 @@ class EnvironmentCoordinate
 
   public:
     explicit inline EnvironmentCoordinate(jsbytecode* pc)
       : hops_(GET_ENVCOORD_HOPS(pc)), slot_(GET_ENVCOORD_SLOT(pc + ENVCOORD_HOPS_LEN))
     {
         MOZ_ASSERT(JOF_OPTYPE(JSOp(*pc)) == JOF_ENVCOORD);
     }
 
-    EnvironmentCoordinate() {}
+    EnvironmentCoordinate() = default;
 
     void setHops(uint32_t hops) {
         MOZ_ASSERT(hops < ENVCOORD_HOPS_LIMIT);
         hops_ = hops;
     }
 
     void setSlot(uint32_t slot) {
         MOZ_ASSERT(slot < ENVCOORD_SLOT_LIMIT);