diff --git a/include/zipr_plugin.h b/include/zipr_plugin.h
index f5a313bf7717b13b4cf1cbdfbc66a687833d8c24..91da31c71951c5299c33b976318a452fdf4b2d18 100644
--- a/include/zipr_plugin.h
+++ b/include/zipr_plugin.h
@@ -63,7 +63,7 @@ class ZiprPluginInterface_t
 		{
 			return None;
 		}
-		virtual ZiprPreference RetargetCallback(const RangeAddress_t &, Zipr_SDK::DollopEntry_t *, RangeAddress_t &)
+		virtual ZiprPreference RetargetCallback(const RangeAddress_t &, const Zipr_SDK::DollopEntry_t *, RangeAddress_t &)
 		{
 			return None;
 		}