diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 2289cadd7..47ce3e0a4 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -3,6 +3,7 @@ D1X-Rebirth Changelog
 20100828
 --------
 main/menu.c: In list_dir_el make sure PHYSFS_getRealDir won't give NULL to strcmp which will happen for files located in a Windows root directory
+include/u_mem.h: Make define of MEM_K apply to non-debug builds as well (whoops)
 
 20100827
 --------
diff --git a/include/u_mem.h b/include/u_mem.h
index 0f3450db0..5e27ceb8d 100644
--- a/include/u_mem.h
+++ b/include/u_mem.h
@@ -16,6 +16,8 @@ COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
 
 #include <stdlib.h>
 
+#define MEM_K 1.5	// Dynamic array growth factor
+
 #ifdef MACINTOSH
 extern ubyte virtual_memory_on;
 #endif