diff --git a/src/runtime/c/pgf/pgf.h b/src/runtime/c/pgf/pgf.h
index 5d01a1ff6..dbbbcb6a2 100644
--- a/src/runtime/c/pgf/pgf.h
+++ b/src/runtime/c/pgf/pgf.h
@@ -13,8 +13,8 @@
 #define PGF_API_DECL EXTERN_C __declspec(dllexport)
 #define PGF_API      EXTERN_C __declspec(dllexport)
 #elif defined(COMPILING_STATIC_PGF)
-#define PGF_API_DECL EXTERN_C
-#define PGF_API      EXTERN_C
+#define PGF_API_DECL EXTERN_C __declspec(dllexport)
+#define PGF_API      EXTERN_C __declspec(dllexport)
 #else
 #define PGF_API_DECL __declspec(dllimport)
 #define PGF_API      ERROR_NOT_COMPILING_LIBPGF