diff --git a/tools/graph2dot.c b/tools/graph2dot.c
index 14f0e7a024..c4a50a8278 100644
--- a/tools/graph2dot.c
+++ b/tools/graph2dot.c
@@ -97,7 +97,7 @@ static void print_digraph(FILE *outfile, AVFilterGraph *graph)
                             link->sample_rate, buf,
                             link->time_base.num, link->time_base.den);
                 }
-                fprintf(outfile, "\n]");
+                fprintf(outfile, "\" ];\n");
             }
         }
     }