diff --git a/ChangeLog.txt b/ChangeLog.txt
index b9e4a4de49..c6bb88f327 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -10,6 +10,10 @@
      * Change, ! Fix, % Optimization, + Addition, - Removal, ; Comment
  */
 
+2015-09-30 11:18 UTC+0200 Przemyslaw Czerpak (druzus/at/poczta.onet.pl)
+  * src/vm/hvm.c
+    ! added missing support for non MT builds in last commit
+
 2015-09-30 10:55 UTC+0200 Przemyslaw Czerpak (druzus/at/poczta.onet.pl)
   * include/harbour.hbx
   * src/vm/hvm.c
diff --git a/src/vm/hvm.c b/src/vm/hvm.c
index bafcf77162..3c71b5d9f9 100644
--- a/src/vm/hvm.c
+++ b/src/vm/hvm.c
@@ -12379,6 +12379,8 @@ HB_FUNC( __VMMODULESVERIFY )
 HB_FUNC( __VMCOUNTTHREADS )
 {
    int iStacks, iThreads;
+
+#if defined( HB_MT_VM )
    HB_STACK_TLS_PRELOAD
 
    HB_VM_LOCK();
@@ -12387,6 +12389,9 @@ HB_FUNC( __VMCOUNTTHREADS )
    iThreads = s_iRunningCount;
 
    HB_VM_UNLOCK();
+#else
+   iStacks = iThreads = 0;
+#endif
 
    hb_storni( iStacks, 1 );
    hb_storni( iThreads, 2 );