diff --git a/include/llvm-c/ExecutionEngine.h b/include/llvm-c/ExecutionEngine.h
index 9877b8d..05f2a89 100644
--- a/include/llvm-c/ExecutionEngine.h
+++ b/include/llvm-c/ExecutionEngine.h
@@ -104,7 +104,7 @@
 }
 
 namespace llvm {
-  class GenericValue;
+  struct GenericValue;
   class ExecutionEngine;
   
   #define DEFINE_SIMPLE_CONVERSION_FUNCTIONS(ty, ref)   \