diff --git a/Source/fontconfig/FCFontAssetInstaller.m b/Source/fontconfig/FCFontAssetInstaller.m
index ace46cd3..7bde1386 100644
--- a/Source/fontconfig/FCFontAssetInstaller.m
+++ b/Source/fontconfig/FCFontAssetInstaller.m
@@ -158,7 +158,7 @@ - (BOOL) installFontPath: (NSString *)fontPath error: (NSError **)error
   // Remove existing font file if present
   if ([[NSFileManager defaultManager] fileExistsAtPath: destinationPath])
     {
-      [[NSFileManager defaultManager] removeItemAtPath: destinationPath error: nil];
+      [[NSFileManager defaultManager] removeItemAtPath: destinationPath error: NULL];
     }
 
   if (![[NSFileManager defaultManager] copyItemAtPath: fontPath