diff --git a/compiler/cpp/src/main.cc b/compiler/cpp/src/main.cc
index 175dbbe..c12b31a 100644
--- a/compiler/cpp/src/main.cc
+++ b/compiler/cpp/src/main.cc
@@ -184,6 +184,7 @@
 bool gen_hs = false;
 bool gen_cocoa = false;
 bool gen_csharp = false;
+bool gen_delphi = false;
 bool gen_st = false;
 bool gen_recurse = false;
 
@@ -1045,6 +1046,8 @@
         gen_st = true;
       } else if (strcmp(arg, "-csharp") == 0) {
         gen_csharp = true;
+      } else if (strcmp(arg, "-delphi") == 0) {
+        gen_delphi = true;
       } else if (strcmp(arg, "-cpp_use_include_prefix") == 0) {
         g_cpp_use_include_prefix = true;
       } else if (strcmp(arg, "-I") == 0) {
@@ -1124,6 +1127,10 @@
     pwarning(1, "-csharp is deprecated.  Use --gen csharp");
     generator_strings.push_back("csharp");
   }
+  if (gen_delphi) {
+    pwarning(1, "-delphi is deprecated.  Use --gen delphi");
+    generator_strings.push_back("delphi");
+  }
   if (gen_py) {
     pwarning(1, "-py is deprecated.  Use --gen py");
     generator_strings.push_back("py");