diff --git a/example/subgraph.cpp b/example/subgraph.cpp
index 289ae54d9..4378bccfd 100644
--- a/example/subgraph.cpp
+++ b/example/subgraph.cpp
@@ -20,10 +20,10 @@
   0(0,1) 1(1,2) 2(1,3) 6(2,5) 3(4,1) 4(4,5) 5(5,3) 
 
   G1:
-  2 --> 5 
-  4 --> 5 
-  5 --> 
-  6(2,5) 4(4,5) 
+  0 --> 2 
+  1 --> 2 
+  2 --> 
+  6(0,2) 4(1,2) 
 
   G2:
   0 --> 1 
diff --git a/example/subgraph.expected b/example/subgraph.expected
index a75a0ce75..144c8e6a8 100644
--- a/example/subgraph.expected
+++ b/example/subgraph.expected
@@ -8,10 +8,10 @@ G0:
 0(0,1) 1(1,2) 2(1,3) 6(2,5) 3(4,1) 4(4,5) 5(5,3) 
 
 G1:
-2 --> 5 
-4 --> 5 
-5 --> 
-6(2,5) 4(4,5) 
+0 --> 2 
+1 --> 2 
+2 --> 
+6(0,2) 4(1,2) 
 
 G2:
 0 --> 1