diff --git a/src/os_msdos.c b/src/os_msdos.c
index 3449d23..2d1cf73 100644
--- a/src/os_msdos.c
+++ b/src/os_msdos.c
@@ -550,15 +550,15 @@
 #endif
 
 /*
- * Return amount of memory currently available.
+ * Return amount of memory currently available in Kbyte.
  */
     long_u
 mch_avail_mem(int special)
 {
 #ifdef DJGPP
-    return _go32_dpmi_remaining_virtual_memory();
+    return _go32_dpmi_remaining_virtual_memory() >> 10;
 #else
-    return coreleft();
+    return coreleft() >> 10;
 #endif
 }