diff --git a/waterbox/nyma/run-flatc.sh b/waterbox/nyma/run-flatc.sh
index 0d5d00a2c1..421f3af7f9 100644
--- a/waterbox/nyma/run-flatc.sh
+++ b/waterbox/nyma/run-flatc.sh
@@ -1,3 +1,3 @@
 #!/bin/sh
 ./flatc --cpp --gen-object-api NymaTypes.fbs
-./flatc --csharp --gen-object-api -o ../../src/Bizhawk.Emulation.Cores/Waterbox NymaTypes.fbs
+./flatc --csharp --gen-object-api -o ../../ExternalProjects/FlatBuffers.GenOutput NymaTypes.fbs