diff --git a/site/en/guide/create_op.md b/site/en/guide/create_op.md
index fa4f573fa32..9aa2dfa337c 100644
--- a/site/en/guide/create_op.md
+++ b/site/en/guide/create_op.md
@@ -553,7 +553,7 @@ or that can't change from step-to-step.
 You define an attr when you register the op, by specifying its name and type
 using the `Attr` method, which expects a spec of the form:
 
-```
+```text
 <name>: <attr-type-expr>
 ```
 
diff --git a/site/en/guide/gpu_performance_analysis.md b/site/en/guide/gpu_performance_analysis.md
index 2832686d8f1..b679bd4b37e 100644
--- a/site/en/guide/gpu_performance_analysis.md
+++ b/site/en/guide/gpu_performance_analysis.md
@@ -454,7 +454,7 @@ prevent any overheads.
 
 The time to AllReduce should be approximately the same as:
 
-```
+```text
 (number of parameters * 4bytes)/ (communication bandwidth)
 ```