diff --git a/Sources/Engine/Network/Compression.cpp b/Sources/Engine/Network/Compression.cpp
index c6650ca..fe788a3 100644
--- a/Sources/Engine/Network/Compression.cpp
+++ b/Sources/Engine/Network/Compression.cpp
@@ -294,6 +294,7 @@ void lzrw1_compress(const UBYTE *p_src_first, ULONG src_len,UBYTE *p_dst_first,
  UBYTE *p_dst_post=p_dst_first+src_len;
  const UBYTE *p_src_max1=p_src_post-ITEMMAX,*p_src_max16=p_src_post-16*ITEMMAX;
  const UBYTE *hash[4096];
+ memset(hash, 0, sizeof(hash));
  UBYTE *p_control; UWORD control=0,control_bits=0;
  *p_dst=FLAG_COMPRESS; p_dst+=FLAG_BYTES; p_control=p_dst; p_dst+=2;
  while (TRUE)