diff --git a/mods/randomizer/src/session.cpp b/mods/randomizer/src/session.cpp
index dc16fd8a41..87ae073e84 100644
--- a/mods/randomizer/src/session.cpp
+++ b/mods/randomizer/src/session.cpp
@@ -404,6 +404,7 @@ ModResult onNewSave(void*, ModError*) {
     if (hash.empty())
         return MOD_ERROR;
 
+    deactivateSeed();
     if (!activateSeed(hash.c_str()))
         return MOD_ERROR;