diff --git a/defaults/yacy.init b/defaults/yacy.init
index 9626d591a..bcdec2847 100644
--- a/defaults/yacy.init
+++ b/defaults/yacy.init
@@ -887,8 +887,8 @@ disk.free = 3000
 # minimum for DHT
 disk.free.hardlimit = 1000
 
-# minimum memory to accept dht-in (KB)
-memory.acceptDHT = 50000
+# minimum memory to accept dht-in (MiB)
+memory.acceptDHTabove = 50
 memory.disabledDHT = false
 
 # setting if execution of CGI files is allowed or not
diff --git a/htroot/PerformanceQueues_p.java b/htroot/PerformanceQueues_p.java
index 6be5b8231..25855cf1b 100644
--- a/htroot/PerformanceQueues_p.java
+++ b/htroot/PerformanceQueues_p.java
@@ -102,7 +102,7 @@ public class PerformanceQueues_p {
             	sb.setConfig(SwitchboardConstants.DISK_FREE_HARDLIMIT, diskFreeHardlimit);
             }
             if(post.containsKey("memoryAcceptDHT")) {
-            	int memoryAcceptDHT = 50000; // default
+            	int memoryAcceptDHT = 50; // default
             	try { memoryAcceptDHT = Integer.parseInt(post.get("memoryAcceptDHT", Integer.toString(memoryAcceptDHT))); } catch (final NumberFormatException e){}
             	sb.setConfig(SwitchboardConstants.MEMORY_ACCEPTDHT, memoryAcceptDHT);
             }
diff --git a/htroot/Performance_p.html b/htroot/Performance_p.html
index a9dd52e10..9aa8fd267 100644
--- a/htroot/Performance_p.html
+++ b/htroot/Performance_p.html
@@ -45,7 +45,7 @@
           <dd>disable crawls below <input name="diskFree" id="diskFree" type="text" size="4" value="#[diskFree]#" /> MiB free space,<br/>
               disable DHT-in below <input name="diskFreeHardlimit" id="diskFreeHardlimit" type="text" size="4" value="#[diskFreeHardlimit]#" /> MiB free space</dd>
           <dt><label for="memoryAcceptDHT">RAM</label></dt>
-          <dd>disable DHT-in below <input name="memoryAcceptDHT" id="memoryAcceptDHT" type="text" size="4" value="#[memoryAcceptDHT]#" /> KiB free space</dd>
+          <dd>disable DHT-in below <input name="memoryAcceptDHT" id="memoryAcceptDHT" type="text" size="4" value="#[memoryAcceptDHT]#" /> MiB free space</dd>
           <dt>&nbsp;</dt>
           <dd><input type="submit" name="setObserver" value="Save" /></dd>
         </dl>
diff --git a/source/de/anomic/crawler/ResourceObserver.java b/source/de/anomic/crawler/ResourceObserver.java
index aa8a5c813..be4a1ad4c 100644
--- a/source/de/anomic/crawler/ResourceObserver.java
+++ b/source/de/anomic/crawler/ResourceObserver.java
@@ -63,7 +63,7 @@ public class ResourceObserver {
      * checks the resources and pauses crawls if necessary
      */
     public void resourceObserverJob() {
-    	MemoryControl.setDHTkbytes(getMinFreeMemory());
+    	MemoryControl.setDHTMbyte(getMinFreeMemory());
 
     	normalizedDiskFree = getNormalizedDiskFree();
     	normalizedMemoryFree = getNormalizedMemoryFree();
@@ -157,7 +157,7 @@ public class ResourceObserver {
     }
     
     /**
-     * @return amount of space (KiB) that should at least be free
+     * @return amount of space (MiB) that should at least be free
      */
     public long getMinFreeMemory() {
     	return sb.getConfigLong(SwitchboardConstants.MEMORY_ACCEPTDHT, 0);
diff --git a/source/de/anomic/search/SwitchboardConstants.java b/source/de/anomic/search/SwitchboardConstants.java
index bed854bb4..c6bccf169 100644
--- a/source/de/anomic/search/SwitchboardConstants.java
+++ b/source/de/anomic/search/SwitchboardConstants.java
@@ -373,7 +373,7 @@ public final class SwitchboardConstants {
     public static final String DISK_FREE = "disk.free";
     public static final String DISK_FREE_HARDLIMIT = "disk.free.hardlimit";
     
-    public static final String MEMORY_ACCEPTDHT = "memory.acceptDHT";
+    public static final String MEMORY_ACCEPTDHT = "memory.acceptDHTabove";
     public static final String INDEX_RECEIVE_AUTODISABLED = "memory.disabledDHT";
     
     /*
diff --git a/source/net/yacy/kelondro/util/MemoryControl.java b/source/net/yacy/kelondro/util/MemoryControl.java
index 08295dd04..3525deb9e 100644
--- a/source/net/yacy/kelondro/util/MemoryControl.java
+++ b/source/net/yacy/kelondro/util/MemoryControl.java
@@ -43,7 +43,7 @@ public class MemoryControl {
 
     private static long lastGC = 0l;
     
-    private static long DHTkbytes = 0L;
+    private static long DHTMbyte = 0L;
     private static long prevDHTtreshold = 0L;
     private static int DHTtresholdCount = 0;
     private static boolean allowDHT = true;
@@ -185,14 +185,17 @@ public class MemoryControl {
     	DHTtresholdCount = 0;
     }
     
-    public static void setDHTkbytes(final long kbytes) {
-    	DHTkbytes = kbytes;
+    /**
+     * set the memory to be available
+     */
+    public static void setDHTMbyte(final long mbyte) {
+    	DHTMbyte = mbyte;
     	DHTtresholdCount = 0;
     }
     
     private static void checkDHTrule(final long available) {
     	// disable dht if memory is less than treshold - 4 times, maximum 11 minutes between each detection
-    	if ((available >> 10) < DHTkbytes) {
+    	if ((available >> 20) < DHTMbyte) {
     		final long t = System.currentTimeMillis();
     		if(prevDHTtreshold + 11L /* minutes */ * 60000L > t) {
     			DHTtresholdCount++;
@@ -204,7 +207,7 @@ public class MemoryControl {
     		
 			log.logInfo("checkDHTrule: below treshold; tresholdCount: " + DHTtresholdCount + "; allowDHT: " + allowDHT);
     	}
-    	else if (!allowDHT && (available >> 10) > (DHTkbytes * 2L)) // we were wrong!
+    	else if (!allowDHT && (available >> 20) > (DHTMbyte * 2L)) // we were wrong!
     		setDHTallowed();
     }