@@ -27,11 +27,11 @@
 #import "OFString.h"
 #import "OFSystemInfo.h"
 
 #import "OFInitializationFailedException.h"
 
-#ifdef _WIN32
+#ifdef OF_WINDOWS
 # define dlsym(handle, symbol) GetProcAddress(handle, symbol)
 # define dlclose(handle) FreeLibrary(handle)
 #endif
 
 typedef OFPlugin* (*init_plugin_t)(void);
@@ -44,11 +44,11 @@
 	init_plugin_t initPlugin;
 	OFPlugin *plugin;
 
 	path = [path stringByAppendingString: @PLUGIN_SUFFIX];
 
-#ifndef _WIN32
+#ifndef OF_WINDOWS
 	if ((handle = dlopen([path cStringWithEncoding:
 	    [OFSystemInfo native8BitEncoding]], RTLD_LAZY)) == NULL)
 #else
 	if ((handle = LoadLibraryW([path UTF16String])) == NULL)
 #endif