diff --git a/0-floor/lace_shared/lace_shared.gpr b/0-floor/lace_shared/lace_shared.gpr
index ad580ac..083176a 100644
--- a/0-floor/lace_shared/lace_shared.gpr
+++ b/0-floor/lace_shared/lace_shared.gpr
@@ -62,8 +62,9 @@ is
       when "debug" =>
          Binder_Options   := Binder_Options   & "-Es";
          Compiler_Options := Compiler_Options & "-O0"
+                                              & "-gnata"
                                               & "-gnato"
-                                              & "-gnateE"                -- Extra debug info in constraint_Error messages.
+                                              & "-gnateE"                -- Extra debug info in 'constraint_Error' messages.
                                               & "-fstack-check"
                                               & "-g";
          case lace_OS