diff --git a/src/server/slave.c b/src/server/slave.c
--- a/src/server/slave.c
+++ b/src/server/slave.c
@@ -234,6 +234,8 @@ int main(int argc, char *argv[])
   // Main loop
   while(!slave_state.quit)
     {
+      outputExt = NULL;
+
       multiio_poll(multiio, 15000);
 
       if(slave_state.quit)
@@ -251,6 +253,7 @@ int main(int argc, char *argv[])
         // jobnum = remoteio_read(jobnum); /* Set jobnum from remoteio (we could use info from struct, but we need this info to download the xmlfile */
         // framenum = remoteio_read(jobnum); /* Set framenum from remoteio */
         // outputExt = remotio)read(outputExt); /* Set output extension from remotio */
+	outputExt = strdup("jpg");	
 
         if(DEBUG)
           fprintf(stderr, "Preparing to render frame %d in job %d\n", framenum, jobnum);
@@ -363,6 +366,8 @@ int main(int argc, char *argv[])
         delete_jobdata(jobnum, datadir);
       }
 
+    free(outputExt);
+
     sleep(5); // Poll 5 seconds. @TODO: Remove all polling
   }