diff --git a/polymer/eduke32/source/actors.c b/polymer/eduke32/source/actors.c
index 3b8afc5b7..8a4179d62 100644
--- a/polymer/eduke32/source/actors.c
+++ b/polymer/eduke32/source/actors.c
@@ -4381,12 +4381,8 @@ ACTOR_STATIC void G_MoveActors(void)
             {
                 for (SPRITES_OF_SECT(sect, j))
                 {
-                    switch (DYNAMICTILEMAP(sprite[j].picnum))
+                    if (A_CheckSpriteTileFlags(sprite[j].picnum, SFLAG_GREENSLIMEFOOD))
                     {
-                    case LIZTROOP__STATIC:
-                    case LIZMAN__STATIC:
-                    case PIGCOP__STATIC:
-                    case NEWBEAST__STATIC:
                         if (ldist(s,&sprite[j]) < 768 && (klabs(s->z-sprite[j].z)<8192))   //Gulp them
                         {
                             t[5] = j;
diff --git a/polymer/eduke32/source/actors.h b/polymer/eduke32/source/actors.h
index 37bf9bff7..053916eab 100644
--- a/polymer/eduke32/source/actors.h
+++ b/polymer/eduke32/source/actors.h
@@ -257,6 +257,7 @@ enum sflags_t {
     SFLAG_NODAMAGEPUSH     = 0x00100000,
     SFLAG_NOWATERDIP       = 0x00200000,
     SFLAG_HURTSPAWNBLOOD   = 0x00400000,
+    SFLAG_GREENSLIMEFOOD   = 0x00800000,
 };
 
 // Custom projectiles "workslike" flags.
diff --git a/polymer/eduke32/source/game.c b/polymer/eduke32/source/game.c
index 4d8db804f..1da8a4c50 100644
--- a/polymer/eduke32/source/game.c
+++ b/polymer/eduke32/source/game.c
@@ -11039,6 +11039,7 @@ static void A_InitEnemyFlags(void)
 
     int32_t SolidEnemies[] = { TANK, BOSS1, BOSS2, BOSS3, BOSS4, RECON, ROTATEGUN };
     int32_t NoWaterDipEnemies[] = { OCTABRAIN, COMMANDER, DRONE };
+    int32_t GreenSlimeFoodEnemies[] = { LIZTROOP, LIZMAN, PIGCOP, NEWBEAST };
 
     for (int i=GREENSLIME; i<=GREENSLIME+7; i++)
         SETFLAG(i, SFLAG_HARDCODED_BADGUY);
@@ -11051,6 +11052,9 @@ static void A_InitEnemyFlags(void)
 
     for (int i=ARRAY_SIZE(NoWaterDipEnemies)-1; i>=0; i--)
         SETFLAG(NoWaterDipEnemies[i], SFLAG_NOWATERDIP);
+
+    for (int i=ARRAY_SIZE(GreenSlimeFoodEnemies)-1; i>=0; i--)
+        SETFLAG(GreenSlimeFoodEnemies[i], SFLAG_GREENSLIMEFOOD);
 }
 #undef SETFLAG