diff --git a/docs/CMakeLists.txt b/docs/CMakeLists.txt
index 422b85f0..cf9bfaa6 100644
--- a/docs/CMakeLists.txt
+++ b/docs/CMakeLists.txt
@@ -8,7 +8,7 @@ set(PICRIN_DOC_OUTPUT_DIRECTORY doc)
 
 add_custom_command(
   OUTPUT ${PICRIN_CONTRIBS_DOC}
-  COMMAND echo "Contrib Libraries \\\(a.k.a nitro\\\)" > ${PICRIN_CONTRIBS_DOC}
+  COMMAND echo "Contrib Libraries \\\(a.k.a nitros\\\)" > ${PICRIN_CONTRIBS_DOC}
   COMMAND echo "===============================" >> ${PICRIN_CONTRIBS_DOC}
   COMMAND echo "" >> ${PICRIN_CONTRIBS_DOC}
   COMMAND cat ${PICRIN_CONTRIB_DOCS} >> ${PICRIN_CONTRIBS_DOC}