diff --git a/libclamav/yc.c b/libclamav/yc.c
index 5261c0fc4..e46680e7f 100644
--- a/libclamav/yc.c
+++ b/libclamav/yc.c
@@ -81,7 +81,7 @@ static int yc_poly_emulator(cli_ctx *ctx, char *base, unsigned int filesize, cha
   unsigned char al;
   unsigned char cl = ecx & 0xff;
   unsigned int j,i;
-  unsigned int max_jmp_loop = 100000;
+  unsigned int max_jmp_loop = 100000000;
 
   for(i=0;i<ecx&&i<max_emu;i++) /* Byte looper - Decrypts every byte and write it back */
     {