diff --git a/packages/libfontconfig/src/libfontconfig.pp b/packages/libfontconfig/src/libfontconfig.pp
index 8ed0b94c93..d76dc91f8e 100644
--- a/packages/libfontconfig/src/libfontconfig.pp
+++ b/packages/libfontconfig/src/libfontconfig.pp
@@ -22,7 +22,7 @@ uses
   ctypes;
 
 Const
-{$ifdef darwin}
+{$ifndef darwin}
   DefaultLibName = 'libfontconfig.so';
 {$else}  
   DefaultLibName = 'libfontconfig.dylib';