diff --git a/src/achievement.cpp b/src/achievement.cpp
index bbec6598f4d0b..6229162f4ab3e 100644
--- a/src/achievement.cpp
+++ b/src/achievement.cpp
@@ -798,12 +798,12 @@ void achievements_tracker::report_achievement( const achievement *a, achievement
         tracker_it->second.current_values()
     }
     );
+    trackers_.erase( tracker_it );
     if( comp == achievement_completion::completed ) {
         achievement_attained_callback_( a, is_enabled() );
     } else if( comp == achievement_completion::failed ) {
         achievement_failed_callback_( a, is_enabled() );
     }
-    trackers_.erase( tracker_it );
 }
 
 achievement_completion achievements_tracker::is_completed( const achievement_id &id ) const