diff --git a/src/lephisto.c b/src/lephisto.c
index 0d2c38d..4534741 100644
--- a/src/lephisto.c
+++ b/src/lephisto.c
@@ -49,7 +49,7 @@
 #include "economy.h"
 #include "menu.h"
 #include "mission.h"
-#include "misn_lua.h"
+#include "llua_misn.h"
 #include "lfile.h"
 #include "unidiff.h"
 #include "nebulae.h"
diff --git a/src/misn_lua.c b/src/llua_misn.c
similarity index 99%
rename from src/misn_lua.c
rename to src/llua_misn.c
index 470cbaf..6d6db59 100644
--- a/src/misn_lua.c
+++ b/src/llua_misn.c
@@ -25,7 +25,7 @@
 #include "xml.h"
 #include "music.h"
 #include "unidiff.h"
-#include "misn_lua.h"
+#include "llua_misn.h"
 
 /* Similar to lua vars, but with less variety. */
 #define MISN_VAR_NIL    0
diff --git a/src/misn_lua.h b/src/llua_misn.h
similarity index 100%
rename from src/misn_lua.h
rename to src/llua_misn.h
diff --git a/src/mission.h b/src/mission.h
index 40bd45c..49ca90e 100644
--- a/src/mission.h
+++ b/src/mission.h
@@ -1,5 +1,5 @@
 #pragma once
-#include "misn_lua.h"
+#include "llua_misn.h"
 
 /* Availability by location. */
 #define MIS_AVAIL_NONE        0
diff --git a/src/music.c b/src/music.c
index a1193e5..55c49f9 100644
--- a/src/music.c
+++ b/src/music.c
@@ -9,7 +9,7 @@
 
 #include "llua.h"
 #include "lluadef.h"
-#include "misn_lua.h"
+#include "llua_misn.h"
 
 #include "lephisto.h"
 #include "log.h"
diff --git a/src/player.c b/src/player.c
index c64a762..eb30ae0 100644
--- a/src/player.c
+++ b/src/player.c
@@ -23,7 +23,7 @@
 #include "toolkit.h"
 #include "dialogue.h"
 #include "mission.h"
-#include "misn_lua.h"
+#include "llua_misn.h"
 #include "ltime.h"
 #include "hook.h"
 #include "map.h"
@@ -95,7 +95,7 @@ int hyperspace_target = -1;             /**< Target hyperspace route. -1 is none
 static unsigned int player_timer = 0;   /**< For death and such. */
 static Vec2 player_cam;                 /**< Again, for death etc. */
 /* For interference. */
-static int interference_layer    = 5;   /**< Layer of the current interference. */
+static int interference_layer    = 0;   /**< Layer of the current interference. */
 static double interference_alpha = 0.;  /**< Alpha of the current interference layer. */
 static double interference_t     = 0.;  /**< Interference timer to control transitions. */