diff --git a/miscutils/flashcp.c b/miscutils/flashcp.c
index b526566a4..9bc588d14 100644
--- a/miscutils/flashcp.c
+++ b/miscutils/flashcp.c
@@ -21,7 +21,7 @@
 
 #define OPT_v (1 << 0)
 
-#define BUFSIZE (8 * 1024)
+#define BUFSIZE (4 * 1024)
 
 static void progress(int mode, uoff_t count, uoff_t total)
 {