1 diff --git a/xdelta3.h b/xdelta3.h
2 index 5dafd8d..22bc37f 100644
6 * buffer is used directly.
8 #ifndef XD3_DEFAULT_WINSIZE
9 -#define XD3_DEFAULT_WINSIZE (1U << 23)
10 +#define XD3_DEFAULT_WINSIZE (1U << 16)
13 /* Default total size of the source window used in xdelta3-main.h */
14 #ifndef XD3_DEFAULT_SRCWINSZ
15 -#define XD3_DEFAULT_SRCWINSZ (1U << 26)
16 +#define XD3_DEFAULT_SRCWINSZ (1U << 19)
19 /* When Xdelta requests a memory allocation for certain buffers, it