diff --git a/src/unix/fcitx5/mozc_response_parser.cc b/src/unix/fcitx5/mozc_response_parser.cc
index e989948ab..e05364907 100644
--- a/src/unix/fcitx5/mozc_response_parser.cc
+++ b/src/unix/fcitx5/mozc_response_parser.cc
@@ -89,6 +89,8 @@ class MozcCandidateWord final : public CandidateWord {
     mozc_state->SelectCandidate(id_);
   }
 
+  int32_t getId() const { return id_; }
+
  private:
   int id_;
   MozcEngine *engine_;
@@ -232,10 +234,12 @@ class MozcCandidateList final : public CandidateList,
   void prev() override {
     auto *mozc_state = engine_->mozcState(ic_);
     mozc_state->Paging(true);
+    highlightFirstCandidate(mozc_state);
   }
   void next() override {
     auto *mozc_state = engine_->mozcState(ic_);
     mozc_state->Paging(false);
+    highlightFirstCandidate(mozc_state);
   }
 
   bool usedNextBefore() const override { return true; }
@@ -247,6 +251,15 @@ class MozcCandidateList final : public CandidateList,
     }
   }
 
+  void highlightFirstCandidate(MozcState *mozc_state) {
+    auto candidates = ic_->inputPanel().candidateList();
+    if (!candidates->empty()) {
+      const auto &candidate =
+          dynamic_cast<const MozcCandidateWord &>(candidates->candidate(0));
+      mozc_state->HighlightCandidate(candidate.getId());
+    }
+  }
+
   InputContext *ic_;
   MozcEngine *engine_;
   std::vector<Text> labels_;
diff --git a/src/unix/fcitx5/mozc_state.cc b/src/unix/fcitx5/mozc_state.cc
index a926c8bcb..0537aba20 100644
--- a/src/unix/fcitx5/mozc_state.cc
+++ b/src/unix/fcitx5/mozc_state.cc
@@ -160,6 +160,17 @@ bool MozcState::TrySendClick(int32_t unique_id, mozc::commands::Output* out,
   return TrySendRawCommand(command, out, out_error);
 }
 
+bool MozcState::TrySendHighlight(int32_t unique_id, mozc::commands::Output* out,
+                                 std::string* out_error) const {
+  DCHECK(out);
+  DCHECK(out_error);
+
+  mozc::commands::SessionCommand command;
+  command.set_type(mozc::commands::SessionCommand::HIGHLIGHT_CANDIDATE);
+  command.set_id(unique_id);
+  return TrySendRawCommand(command, out, out_error);
+}
+
 bool MozcState::TrySendCompositionMode(mozc::commands::CompositionMode mode,
                                        mozc::commands::Output* out,
                                        std::string* out_error) const {
@@ -288,6 +299,24 @@ void MozcState::SelectCandidate(int32_t id) {
   }
 }
 
+void MozcState::HighlightCandidate(int32_t id) {
+  if (id == kBadCandidateId) {
+    LOG(ERROR) << "The highlighted candidate doesn't have unique ID.";
+    return;
+  }
+  MOZC_VLOG(1) << "highlight_candidate, id=" << id;
+
+  std::string error;
+  mozc::commands::Output raw_response;
+  if (!TrySendHighlight(id, &raw_response, &error)) {
+    LOG(ERROR) << "IPC failed. error=" << error;
+    SetAuxString(error);
+    DrawAll();
+  } else {
+    ParseResponse(raw_response);
+  }
+}
+
 // This function is called from SCIM framework.
 void MozcState::Reset() {
   MOZC_VLOG(1) << "resetim";
diff --git a/src/unix/fcitx5/mozc_state.h b/src/unix/fcitx5/mozc_state.h
index 89b1a4082..d3936ac68 100644
--- a/src/unix/fcitx5/mozc_state.h
+++ b/src/unix/fcitx5/mozc_state.h
@@ -62,7 +62,8 @@ class MozcState : public InputContextProperty {
 
   bool ProcessKeyEvent(KeySym sym, uint32_t keycode, KeyStates state,
                        bool layout_is_jp, bool is_key_up);
-  void SelectCandidate(int idx);
+  void SelectCandidate(int32_t id);
+  void HighlightCandidate(int32_t id);
   void Reset();
   void FocusIn();
   void FocusOut(const InputContextEvent &event);
@@ -119,6 +120,9 @@ class MozcState : public InputContextProperty {
   bool TrySendClick(int32_t unique_id, mozc::commands::Output *out,
                     std::string *out_error) const;
 
+  bool TrySendHighlight(int32_t unique_id, mozc::commands::Output *out,
+                        std::string *out_error) const;
+
   // Sends composition mode to the server.
   bool TrySendCompositionMode(mozc::commands::CompositionMode mode,
                               mozc::commands::Output *out,