diff --git a/src/server/simpleslave.c b/src/server/simpleslave.c
--- a/src/server/simpleslave.c
+++ b/src/server/simpleslave.c
@@ -211,6 +211,7 @@ int main(int argc, char *argv[])
             return 1;
           }
         free(pathtoJobfile);
+        pathtoJobfile = NULL;
 
         struct stat buffer;
         int fstatus = stat(pathtoOutput, &buffer);
@@ -226,7 +227,8 @@ int main(int argc, char *argv[])
 
           free(urltoOutput);
           free(pathtoOutput);
-
+          urltoOutput = NULL;
+          pathtoOutput = NULL;
           // Tell the server that rendering and upload are complete
           _web_finishframe(slavekey, password, jobnum, framenum);
         }
@@ -245,6 +247,18 @@ int main(int argc, char *argv[])
       }
   }
 
+  free(my_cfg);
+  free(outputExt);
+  free(datadir);
+  free(urltoTar);
+  free(pathtoTar);
+  free(pathtoTardir);
+  free(pathtoJob);
+  free(pathtoJobfile);
+  free(urltoJobfile);
+  free(urltoOutput);
+  free(pathtoRenderOutput);
+  free(pathtoOutdir);
   fprintf(stderr,"Goodbye!\n");
   return 0;
 }