--- gmimms-0.0.9.old/src/backend-operations.c
+++ gmimms-0.0.9/src/backend-operations.c
@@ -603,7 +603,7 @@
 
 		gtk_dialog_run(GTK_DIALOG (error_dialog));
 		gtk_widget_destroy(error_dialog);
-		return;
+		return FALSE;
 	}
 
 	/* check if output file has been set */
@@ -615,7 +615,7 @@
 
 		gtk_dialog_run(GTK_DIALOG (error_dialog));
 		gtk_widget_destroy(error_dialog);
-		return;
+		return FALSE;
 	}
 
 	/* check if method is set in the url. return FALSE if not */
@@ -670,7 +670,7 @@
 	if((timer = g_malloc0(SIZE)) == NULL)
 	{
 		fprintf(stderr, "Can't allocate memory!\n");
-		return 0;
+		return FALSE;
 	}
 
 	/* Set timer string */