diff --git a/include/FLAC++/export.h b/include/FLAC++/export.h
index 11c09e6..7621f64 100644
--- a/include/FLAC++/export.h
+++ b/include/FLAC++/export.h
@@ -61,9 +61,9 @@
 
 #elif defined(_MSC_VER)
 #ifdef FLACPP_API_EXPORTS
-#define	FLACPP_API	_declspec(dllexport)
+#define	FLACPP_API __declspec(dllexport)
 #else
-#define FLACPP_API	_declspec(dllimport)
+#define FLACPP_API __declspec(dllimport)
 #endif
 
 #elif defined(FLAC__USE_VISIBILITY_ATTR)
diff --git a/include/FLAC/export.h b/include/FLAC/export.h
index 2232b41..ed8091d 100644
--- a/include/FLAC/export.h
+++ b/include/FLAC/export.h
@@ -61,9 +61,9 @@
 
 #elif defined(_MSC_VER)
 #ifdef FLAC_API_EXPORTS
-#define	FLAC_API	_declspec(dllexport)
+#define	FLAC_API __declspec(dllexport)
 #else
-#define FLAC_API	_declspec(dllimport)
+#define FLAC_API __declspec(dllimport)
 #endif
 
 #elif defined(FLAC__USE_VISIBILITY_ATTR)