diff --git a/src/arch/simddetect.h b/src/arch/simddetect.h
index 0976619e6c..4d4201ff88 100644
--- a/src/arch/simddetect.h
+++ b/src/arch/simddetect.h
@@ -52,7 +52,7 @@ class SIMDDetect {
   }
 
   // Update settings after config variable was set.
-  static void Update();
+  static TESS_API void Update();
 
  private:
   // Constructor, must set all static member variables.
diff --git a/src/dict/dict.h b/src/dict/dict.h
index 5201fe1e8a..7543fe13ef 100644
--- a/src/dict/dict.h
+++ b/src/dict/dict.h
@@ -301,7 +301,7 @@ class Dict {
 
   /// Initialize Dict class - load dawgs from [lang].traineddata and
   /// user-specified wordlist and parttern list.
-  static DawgCache *GlobalDawgCache();
+  static TESS_API DawgCache *GlobalDawgCache();
   // Sets up ready for a Load or LoadLSTM.
   void SetupForLoad(DawgCache *dawg_cache);
   // Loads the dawgs needed by Tesseract. Call FinishLoad() after.