diff --git a/src/server/slavefuncs.c b/src/server/slavefuncs.c
--- a/src/server/slavefuncs.c
+++ b/src/server/slavefuncs.c
@@ -733,11 +733,27 @@ int _web_getwork(int slavekey, char *sla
     free(data.memory);
     return 0;
   }
+  // Compare to PACKAGE_VERSIOn
   else{
-    *jobnum = atoi(data.memory);
-    *framenum = atoi(strchr(data.memory, ',') + 1);
-    free(data.memory);
-    return 1;
+    char *tmp;
+    int serverversion = 0;
+    int packageversion = *PACKAGE_VERSION;
+    tmp = strtok (data.memory,",");
+    if(tmp != NULL){ // make sure work is available
+      *jobnum = atoi(tmp);
+      tmp = strtok (NULL, ",");
+      *framenum = atoi(tmp);
+      tmp = strtok (NULL, ",");
+      serverversion = atoi(tmp);
+      if(packageversion < serverversion){
+        fprintf(stderr,"Your distren package is out of date! Please acquire a newer version.\n");
+        return 0;
+      }
+      free(data.memory);
+      return 1;
+    }
+    else
+      return 0; // error
   }
 }