diff --git a/src/rime/context.h b/src/rime/context.h
index 988a5817d3..e31ea3cd53 100644
--- a/src/rime/context.h
+++ b/src/rime/context.h
@@ -16,7 +16,7 @@ namespace rime {
 class Candidate;
 class KeyEvent;
 
-class Context {
+class RIME_API Context {
  public:
   using Notifier = signal<void(Context* ctx)>;
   using OptionUpdateNotifier = signal<void(Context* ctx, const string& option)>;
@@ -28,11 +28,11 @@ class Context {
   Context() = default;
   ~Context() = default;
 
-  RIME_API bool Commit();
+  bool Commit();
   string GetCommitText() const;
   string GetScriptText() const;
   Preedit GetPreedit() const;
-  RIME_API bool IsComposing() const;
+  bool IsComposing() const;
   bool HasMenu() const;
   an<Candidate> GetSelectedCandidate() const;
 
diff --git a/src/rime/dict/mapped_file.h b/src/rime/dict/mapped_file.h
index f2ac1ffa7e..03352f0314 100644
--- a/src/rime/dict/mapped_file.h
+++ b/src/rime/dict/mapped_file.h
@@ -81,10 +81,10 @@ struct List {
 
 class MappedFileImpl;
 
-class MappedFile : boost::noncopyable {
+class RIME_API MappedFile : boost::noncopyable {
  protected:
   explicit MappedFile(const string& file_name);
-  RIME_API virtual ~MappedFile();
+  virtual ~MappedFile();
 
   bool Create(size_t capacity);
   bool OpenReadOnly();
@@ -108,8 +108,8 @@ class MappedFile : boost::noncopyable {
  public:
   bool Exists() const;
   bool IsOpen() const;
-  RIME_API void Close();
-  RIME_API bool Remove();
+  void Close();
+  bool Remove();
 
   template <class T>
   T* Find(size_t offset);
diff --git a/src/rime/dict/string_table.h b/src/rime/dict/string_table.h
index d9c70b6e5f..4e8872bd44 100644
--- a/src/rime/dict/string_table.h
+++ b/src/rime/dict/string_table.h
@@ -10,6 +10,7 @@
 
 #include <utility>
 #include <marisa.h>
+#include <rime_api.h>
 #include <rime/common.h>
 
 namespace rime {
@@ -18,7 +19,7 @@ using StringId = marisa::UInt32;
 
 const StringId kInvalidStringId = (StringId)(-1);
 
-class StringTable {
+class RIME_API StringTable {
  public:
   StringTable() = default;
   virtual ~StringTable() = default;
@@ -37,7 +38,7 @@ class StringTable {
   marisa::Trie trie_;
 };
 
-class StringTableBuilder : public StringTable {
+class RIME_API StringTableBuilder : public StringTable {
  public:
   void Add(const string& key,
            double weight = 1.0,
diff --git a/src/rime/segmentation.h b/src/rime/segmentation.h
index b30e00b448..4019844645 100644
--- a/src/rime/segmentation.h
+++ b/src/rime/segmentation.h
@@ -53,17 +53,17 @@ struct Segment {
   an<Candidate> GetSelectedCandidate() const;
 };
 
-class Segmentation : public vector<Segment> {
+class RIME_API Segmentation : public vector<Segment> {
  public:
-  RIME_API Segmentation();
+  Segmentation();
   virtual ~Segmentation() {}
-  RIME_API void Reset(const string& input);
+  void Reset(const string& input);
   void Reset(size_t num_segments);
   bool AddSegment(Segment segment);
 
   bool Forward();
   bool Trim();
-  RIME_API bool HasFinishedSegmentation() const;
+  bool HasFinishedSegmentation() const;
   size_t GetCurrentStartPosition() const;
   size_t GetCurrentEndPosition() const;
   size_t GetCurrentSegmentLength() const;
diff --git a/src/rime/service.h b/src/rime/service.h
index 3a8b47b880..2b3111afac 100644
--- a/src/rime/service.h
+++ b/src/rime/service.h
@@ -56,7 +56,7 @@ class Session {
 class ResourceResolver;
 struct ResourceType;
 
-class Service {
+class RIME_API Service {
  public:
   ~Service();
 
@@ -84,7 +84,7 @@ class Service {
   Deployer& deployer() { return deployer_; }
   bool disabled() { return !started_ || deployer_.IsMaintenanceMode(); }
 
-  RIME_API static Service& instance();
+  static Service& instance();
 
  private:
   Service();
diff --git a/src/rime/translation.h b/src/rime/translation.h
index dfc3d206e9..454eb2740e 100644
--- a/src/rime/translation.h
+++ b/src/rime/translation.h
@@ -51,7 +51,7 @@ class UniqueTranslation : public Translation {
   an<Candidate> candidate_;
 };
 
-class FifoTranslation : public Translation {
+class RIME_API FifoTranslation : public Translation {
  public:
   FifoTranslation();