diff --git a/lib/ffi_generator/clang/cursor.rb b/lib/ffi_generator/clang/cursor.rb
index 2d79ac0..df52a5b 100644
--- a/lib/ffi_generator/clang/cursor.rb
+++ b/lib/ffi_generator/clang/cursor.rb
@@ -1,3 +1,5 @@
+require 'zlib'
+
 module FFIGenerate
   module Clang
 
@@ -84,7 +86,15 @@ def result_type
       end
 
       def spelling
-        String.from_c(C.get_cursor_spelling(@c)).to_s
+        spelling = String.from_c(C.get_cursor_spelling(@c)).to_s
+        # Fix names for unnamed items
+        if [:struct_decl, :union_decl, :enum_decl].include?(kind) && spelling.match?(/(struct|union|enum) \(unnamed at/)
+          usr = String.from_c(C.get_cursor_usr(@c)).to_s
+          prefix = usr.split('@')[2]
+          prefix = 'unnamed' unless prefix
+          spelling = prefix + Zlib::crc32(usr).to_s
+        end
+        spelling
       end
 
       def ==(other)