diff --git a/base1432.c b/base1432.c
index 3b826d4..6fa29e8 100644
--- a/base1432.c
+++ b/base1432.c
@@ -192,7 +192,7 @@ int base16384_decode(const char* data, int dlen, char* buf, int blen) {
 			if(offset--) {
 				buf[i++] = ((sum & 0x000f0000) >> 12) | ((sum & 0xf0000000) >> 28);
 				if(offset--) {
-					buf[i++] = (sum & 0x0f000000) >> 20;
+					buf[i] = (sum & 0x0f000000) >> 20;
 					// 这里有读取越界
 					sum = vals[n];
 					sum -= 0x0000004e;