diff --git a/include/SFML/Config.hpp b/include/SFML/Config.hpp
index 677d4096..d9df3f6c 100644
--- a/include/SFML/Config.hpp
+++ b/include/SFML/Config.hpp
@@ -127,7 +127,7 @@
         #if __GNUC__ >= 4
 
             // gcc 4 has special keywords for showing/hidding symbols
-            #define SFML_API __attribute__ ((visibility ("default")))
+            #define SFML_API __attribute__ ((__visibility__ ("default")))
 
         #else
 
diff --git a/src/SFML/System/Unix/Initializer.cpp b/src/SFML/System/Unix/Initializer.cpp
index 0d3dbeea..018d4a36 100644
--- a/src/SFML/System/Unix/Initializer.cpp
+++ b/src/SFML/System/Unix/Initializer.cpp
@@ -48,7 +48,7 @@ namespace priv
 /// The "constructor" attribute forces the function to be called
 /// at library loading time.
 ////////////////////////////////////////////////////////////
-void InitializeWorkingDirectory(void) __attribute__ ((constructor));
+void InitializeWorkingDirectory(void) __attribute__ ((__constructor__));
 void InitializeWorkingDirectory(void)
 {
 	char PathBuffer[4096];