diff --git a/Doc/library/subprocess.rst b/Doc/library/subprocess.rst
--- a/Doc/library/subprocess.rst
+++ b/Doc/library/subprocess.rst
@@ -806,6 +806,8 @@
 Alternatively, for trusted input, the shell's own pipeline support may still
 be used directly:
 
+::
+
 output=`dmesg | grep hda`
 # becomes
 output=check_output("dmesg | grep hda", shell=True)
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