diff --git a/src/space.c b/src/space.c
index a31fbb2..7a7e9fc 100644
--- a/src/space.c
+++ b/src/space.c
@@ -628,6 +628,11 @@ void space_init(const char* sysname) {
       }
     }
   }
+
+  /* Clear interference if you leave system with interference. */
+  if(cur_system->interference == 0.)
+    interference_alpha = 0.;
+
   /* Reset player enemies. */
   player_enemies = 0;