diff --git a/CHANGELOG b/CHANGELOG
index fc854970..140fd975 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -424,6 +424,9 @@ HISTORY
 
   ++ Bug fixes:
 
+  2007-10-08 Simon Goldschmidt
+  * mem.c: lfree was not updated in mem_realloc!
+
   2007-10-07 Simon Goldschmidt
   * udp.c, inet.c, inet.h: Fixed UDPLite SENDING: Checksum was always generated
     too short and also was generated wrong if checksum coverage != tot_len.
diff --git a/src/core/mem.c b/src/core/mem.c
index de5cd62c..afb4a52f 100644
--- a/src/core/mem.c
+++ b/src/core/mem.c
@@ -341,6 +341,9 @@ mem_realloc(void *rmem, mem_size_t newsize)
     next = mem2->next;
     /* create new struct mem which is moved directly after the shrinked mem */
     ptr2 = ptr + SIZEOF_STRUCT_MEM + newsize;
+    if (lfree == mem2) {
+      lfree = (struct mem *)&ram[ptr2];
+    }
     mem2 = (struct mem *)&ram[ptr2];
     mem2->used = 0;
     /* restore the next pointer */
@@ -366,6 +369,9 @@ mem_realloc(void *rmem, mem_size_t newsize)
      *       the 2 regions would be combined, resulting in more free memory */
     ptr2 = ptr + SIZEOF_STRUCT_MEM + newsize;
     mem2 = (struct mem *)&ram[ptr2];
+    if (mem2 < lfree) {
+      lfree = mem2;
+    }
     mem2->used = 0;
     mem2->next = mem->next;
     mem2->prev = ptr;