diff --git a/source/duke3d/src/actors.cpp b/source/duke3d/src/actors.cpp
index 4856e49da..bdef1ac3e 100644
--- a/source/duke3d/src/actors.cpp
+++ b/source/duke3d/src/actors.cpp
@@ -517,7 +517,7 @@ int32_t A_MoveSpriteClipdist(int32_t spriteNum, vec3_t const * const change, uin
         if (newSectnum < 0 || ((actor[spriteNum].stayput >= 0 && actor[spriteNum].stayput != newSectnum)
 #ifndef EDUKE32_STANDALONE
                 || (pSprite->picnum == BOSS2 && pSprite->pal == 0 && sector[newSectnum].lotag != ST_3)
-                || ((pSprite->picnum == BOSS1 || pSprite->picnum == BOSS2) && sector[newSectnum].lotag == ST_1_ABOVE_WATER)
+                || ((pSprite->picnum == BOSS1 || pSprite->picnum == BOSS2 || g_tile[pSprite->picnum].flags & SFLAG_NOWATERSECTOR) && sector[newSectnum].lotag == ST_1_ABOVE_WATER)
                 || (sector[oldSectnum].lotag != ST_1_ABOVE_WATER && sector[newSectnum].lotag == ST_1_ABOVE_WATER
                     && (pSprite->picnum == LIZMAN || (pSprite->picnum == LIZTROOP && pSprite->zvel == 0)))
 #endif
diff --git a/source/duke3d/src/actors.h b/source/duke3d/src/actors.h
index f72d2fc13..b6f2645cb 100644
--- a/source/duke3d/src/actors.h
+++ b/source/duke3d/src/actors.h
@@ -393,6 +393,7 @@ enum sflags_t
     SFLAG_REALCLIPDIST     = 0x01000000,
     SFLAG_WAKEUPBADGUYS    = 0x02000000,
     SFLAG_DAMAGEEVENT      = 0x04000000,
+    SFLAG_NOWATERSECTOR    = 0x08000000,
 };
 
 // Custom projectiles "workslike" flags.
diff --git a/source/duke3d/src/gamedef.cpp b/source/duke3d/src/gamedef.cpp
index 98defd718..cfe7bc356 100644
--- a/source/duke3d/src/gamedef.cpp
+++ b/source/duke3d/src/gamedef.cpp
@@ -6018,6 +6018,7 @@ static void C_AddDefaultDefinitions(void)
         { "SFLAG_SMOOTHMOVE",     SFLAG_SMOOTHMOVE },
         { "SFLAG_USEACTIVATOR",   SFLAG_USEACTIVATOR },
         { "SFLAG_WAKEUPBADGUYS",  SFLAG_WAKEUPBADGUYS },
+        { "SFLAG_NOWATERSECTOR",  SFLAG_NOWATERSECTOR },
 
         { "STAT_ACTIVATOR",   STAT_ACTIVATOR },
         { "STAT_ACTOR",       STAT_ACTOR },