diff --git a/include/libirecovery.h b/include/libirecovery.h
index 33879a4..41fc8bb 100644
--- a/include/libirecovery.h
+++ b/include/libirecovery.h
@@ -30,17 +30,13 @@ extern "C" {
 #ifdef IRECV_STATIC
   #define IRECV_API
 #elif defined(_WIN32)
-  #ifdef DLL_EXPORT
+  #ifdef IRECV_EXPORT
     #define IRECV_API __declspec(dllexport)
   #else
     #define IRECV_API __declspec(dllimport)
   #endif
 #else
-  #if __GNUC__ >= 4
-    #define IRECV_API __attribute__((visibility("default")))
-  #else
-    #define IRECV_API
-  #endif
+  #define IRECV_API __attribute__((visibility("default")))
 #endif
 
 enum irecv_mode {