diff --git a/src/event.cpp b/src/event.cpp
index ae050638c1aa1..b39c216829033 100644
--- a/src/event.cpp
+++ b/src/event.cpp
@@ -103,6 +103,7 @@ std::string enum_to_string<event_type>( event_type data )
         case event_type::player_fails_conduct: return "player_fails_conduct";
         case event_type::player_gets_achievement: return "player_gets_achievement";
         case event_type::player_levels_spell: return "player_levels_spell";
+        case event_type::rad_mutate: return "rad_mutate";
         case event_type::reads_book: return "reads_book";
         case event_type::releases_subspace_specimens: return "releases_subspace_specimens";
         case event_type::removes_cbm: return "removes_cbm";
@@ -206,6 +207,7 @@ DEFINE_EVENT_FIELDS( opens_spellbook )
 DEFINE_EVENT_FIELDS( player_fails_conduct )
 DEFINE_EVENT_FIELDS( player_gets_achievement )
 DEFINE_EVENT_FIELDS( player_levels_spell )
+DEFINE_EVENT_FIELDS( rad_mutate )
 DEFINE_EVENT_FIELDS( removes_cbm )
 DEFINE_EVENT_FIELDS( spellcasting_finish )
 DEFINE_EVENT_FIELDS( telefrags_creature )
diff --git a/src/event.h b/src/event.h
index 6e2fb2990e07b..68399dc8e7398 100644
--- a/src/event.h
+++ b/src/event.h
@@ -113,6 +113,7 @@ enum class event_type : int {
     player_levels_spell,
     reads_book,
     releases_subspace_specimens,
+    rad_mutate,
     removes_cbm,
     seals_hazardous_material_sarcophagus,
     spellcasting_finish,
diff --git a/src/suffer.cpp b/src/suffer.cpp
index 05e2626e276df..1248061d3d12e 100644
--- a/src/suffer.cpp
+++ b/src/suffer.cpp
@@ -1170,7 +1170,7 @@ void suffer::from_radiation( Character &you )
         // 1000 rads = 900 / 10000 = 9 / 100 = 10% !!!
         // 2000 rads = 2000 / 10000 = 1 / 5 = 20% !!!
         if( get_option<bool>( "RAD_MUTATION" ) && rng( 100, 10000 ) < you.get_rad() ) {
-            you.mutate();
+            get_event_bus().send<event_type::rad_mutate>( getID(), bp );
         }
         if( you.get_rad() > 50 && rng( 1, 3000 ) < you.get_rad() &&
             ( you.stomach.contains() > 0_ml || radiation_increasing || !you.in_sleep_state() ) ) {