diff --git a/server/request.h b/server/request.h
index 0133af7..acf886f 100644
--- a/server/request.h
+++ b/server/request.h
@@ -751,7 +751,7 @@
 C_ASSERT( sizeof(struct resume_thread_request) == 16 );
 C_ASSERT( FIELD_OFFSET(struct resume_thread_reply, count) == 8 );
 C_ASSERT( sizeof(struct resume_thread_reply) == 16 );
-C_ASSERT( FIELD_OFFSET(struct load_dll_request, handle) == 12 );
+C_ASSERT( FIELD_OFFSET(struct load_dll_request, mapping) == 12 );
 C_ASSERT( FIELD_OFFSET(struct load_dll_request, base) == 16 );
 C_ASSERT( FIELD_OFFSET(struct load_dll_request, name) == 24 );
 C_ASSERT( FIELD_OFFSET(struct load_dll_request, size) == 32 );