diff --git a/core/src/io/anuke/mindustry/ai/BlockIndexer.java b/core/src/io/anuke/mindustry/ai/BlockIndexer.java
index b57e364d91..0fdbbb7c5e 100644
--- a/core/src/io/anuke/mindustry/ai/BlockIndexer.java
+++ b/core/src/io/anuke/mindustry/ai/BlockIndexer.java
@@ -164,6 +164,10 @@ public class BlockIndexer{
     }
 
     public TileEntity findTile(Team team, float x, float y, float range, Predicate<Tile> pred){
+        return findTile(team, x, y, range, pred, false);
+    }
+
+    public TileEntity findTile(Team team, float x, float y, float range, Predicate<Tile> pred, boolean usePriority){
         TileEntity closest = null;
         float dst = 0;
 
@@ -184,7 +188,7 @@ public class BlockIndexer{
                         TileEntity e = other.entity;
 
                         float ndst = Mathf.dst(x, y, e.x, e.y);
-                        if(ndst < range && (closest == null || ndst < dst)){
+                        if(ndst < range && (closest == null || ndst < dst || (usePriority && closest.block.priority.ordinal() < e.block.priority.ordinal()))){
                             dst = ndst;
                             closest = e;
                         }
diff --git a/core/src/io/anuke/mindustry/entities/TargetPriority.java b/core/src/io/anuke/mindustry/entities/TargetPriority.java
new file mode 100644
index 0000000000..47b0213de3
--- /dev/null
+++ b/core/src/io/anuke/mindustry/entities/TargetPriority.java
@@ -0,0 +1,6 @@
+package io.anuke.mindustry.entities;
+
+public enum TargetPriority{
+    base,
+    turret
+}
diff --git a/core/src/io/anuke/mindustry/entities/Units.java b/core/src/io/anuke/mindustry/entities/Units.java
index af3d3f4fe7..c9d0073998 100644
--- a/core/src/io/anuke/mindustry/entities/Units.java
+++ b/core/src/io/anuke/mindustry/entities/Units.java
@@ -87,7 +87,7 @@ public class Units{
         if(team == Team.derelict) return null;
 
         for(Team enemy : state.teams.enemiesOf(team)){
-            TileEntity entity = indexer.findTile(enemy, x, y, range, pred);
+            TileEntity entity = indexer.findTile(enemy, x, y, range, pred, true);
             if(entity != null){
                 return entity;
             }
diff --git a/core/src/io/anuke/mindustry/world/Block.java b/core/src/io/anuke/mindustry/world/Block.java
index 838eeeee7a..2d505333bb 100644
--- a/core/src/io/anuke/mindustry/world/Block.java
+++ b/core/src/io/anuke/mindustry/world/Block.java
@@ -83,6 +83,8 @@ public class Block extends BlockStorage{
     public BlockGroup group = BlockGroup.none;
     /** List of block flags. Used for AI indexing. */
     public EnumSet<BlockFlag> flags = EnumSet.of();
+    /** Targeting priority of this block, as seen by enemies.*/
+    public TargetPriority priority = TargetPriority.base;
     /** Whether the block can be tapped and selected to configure. */
     public boolean configurable;
     /** Whether this block consumes touchDown events when tapped. */
diff --git a/core/src/io/anuke/mindustry/world/blocks/defense/turrets/Turret.java b/core/src/io/anuke/mindustry/world/blocks/defense/turrets/Turret.java
index 948161dfd1..8a124ea3cc 100644
--- a/core/src/io/anuke/mindustry/world/blocks/defense/turrets/Turret.java
+++ b/core/src/io/anuke/mindustry/world/blocks/defense/turrets/Turret.java
@@ -72,6 +72,7 @@ public abstract class Turret extends Block{
 
     public Turret(String name){
         super(name);
+        priority = TargetPriority.turret;
         update = true;
         solid = true;
         layer = Layer.turret;