diff --git a/docs/framework_concepts/graphs.md b/docs/framework_concepts/graphs.md
index 83f95e5bb..22d1c842d 100644
--- a/docs/framework_concepts/graphs.md
+++ b/docs/framework_concepts/graphs.md
@@ -83,12 +83,12 @@ Below is an example of how to create a subgraph named `TwoPassThroughSubgraph`.
     output_stream: "out3"
 
     node {
-        calculator: "PassThroughculator"
+        calculator: "PassThroughCalculator"
         input_stream: "out1"
         output_stream: "out2"
     }
     node {
-        calculator: "PassThroughculator"
+        calculator: "PassThroughCalculator"
         input_stream: "out2"
         output_stream: "out3"
     }