diff --git a/Config/Project64.rdb b/Config/Project64.rdb
index dbfc119cc..2c02cf12b 100644
--- a/Config/Project64.rdb
+++ b/Config/Project64.rdb
@@ -2564,6 +2564,7 @@ Internal Name=Hydro Thunder
 Status=Compatible
 Plugin Note=[video] (see GameFAQ)
 AiCountPerBytes=530
+Audio Signal=Yes
 Counter Factor=1
 Fixed Audio=1
 RDRAM Size=8
@@ -2575,6 +2576,7 @@ Internal Name=Hydro Thunder
 Status=Compatible
 Plugin Note=[video] (see GameFAQ)
 AiCountPerBytes=530
+Audio Signal=Yes
 Counter Factor=1
 Fixed Audio=1
 RDRAM Size=8
@@ -2586,6 +2588,7 @@ Internal Name=HYDRO THUNDER
 Status=Compatible
 Plugin Note=[video] (see GameFAQ)
 AiCountPerBytes=530
+Audio Signal=Yes
 Counter Factor=1
 Fixed Audio=1
 RDRAM Size=8