diff --git a/process.c b/process.c
index d643c6f..7be10df 100644
--- a/process.c
+++ b/process.c
@@ -1279,7 +1279,7 @@ static int find_ecrec64(__G__ searchlen)         /* return PK-class error */
     fprintf(stdout,"\nnumber of disks (ECR) %u, (ECLOC64) %lu\n",
             G.ecrec.number_this_disk, ecloc64_total_disks); fflush(stdout);
 #endif
-    if ((G.ecrec.number_this_disk != 0xFFFF) &&
+    if ((G.ecrec.number_this_disk != 0xFFFF) && ecloc64_total_disks &&
         (G.ecrec.number_this_disk != ecloc64_total_disks - 1)) {
       /* Note: For some unknown reason, the developers at PKWARE decided to
          store the "zip64 total disks" value as a counter starting from 1,