diff --git a/src/env-inl.h b/src/env-inl.h
index f50ec13732e015..9084cb5159e58a 100644
--- a/src/env-inl.h
+++ b/src/env-inl.h
@@ -118,7 +118,7 @@ inline uint32_t Environment::DomainFlag::count() const {
   return fields_[kCount];
 }
 
-inline Environment::TickInfo::TickInfo() : in_tick_(false) {
+inline Environment::TickInfo::TickInfo() {
   for (int i = 0; i < kFieldsCount; ++i)
     fields_[i] = 0;
 }
@@ -131,10 +131,6 @@ inline int Environment::TickInfo::fields_count() const {
   return kFieldsCount;
 }
 
-inline bool Environment::TickInfo::in_tick() const {
-  return in_tick_;
-}
-
 inline uint32_t Environment::TickInfo::index() const {
   return fields_[kIndex];
 }
@@ -143,10 +139,6 @@ inline uint32_t Environment::TickInfo::length() const {
   return fields_[kLength];
 }
 
-inline void Environment::TickInfo::set_in_tick(bool value) {
-  in_tick_ = value;
-}
-
 inline void Environment::TickInfo::set_index(uint32_t value) {
   fields_[kIndex] = value;
 }
diff --git a/src/env.h b/src/env.h
index 5849d7a92107e2..44318da1fa3d0f 100644
--- a/src/env.h
+++ b/src/env.h
@@ -331,10 +331,8 @@ class Environment {
    public:
     inline uint32_t* fields();
     inline int fields_count() const;
-    inline bool in_tick() const;
     inline uint32_t index() const;
     inline uint32_t length() const;
-    inline void set_in_tick(bool value);
     inline void set_index(uint32_t value);
 
    private:
@@ -348,7 +346,6 @@ class Environment {
     };
 
     uint32_t fields_[kFieldsCount];
-    bool in_tick_;
 
     DISALLOW_COPY_AND_ASSIGN(TickInfo);
   };