diff --git a/docs.it4i/index.md b/docs.it4i/index.md
index 8c5918ce6b3b7a66783c67a87fd6c360d4926421..d135bd594a7dc0a3f71801c501d9f45b7ade5b88 100644
--- a/docs.it4i/index.md
+++ b/docs.it4i/index.md
@@ -31,7 +31,7 @@ In many cases, you will run your own code on the cluster. In order to fully expl
 
 * **node:** a computer, interconnected via a network to other computers - Computational nodes are powerful computers, designed for, and dedicated to executing demanding scientific computations.
 * **core:** a processor core, a unit of processor, executing computations
-* **core-hour:** also normalized core-hour, NCH. A metric of computer utilization, [see definition][5].
+* **core-hour:** also normalized core-hour (NCH). A metric of computer utilization, [see definition][5].
 * **job:** a calculation running on the supercomputer - the job allocates and utilizes the resources of the supercomputer for certain time.
 * **HPC:** High Performance Computing
 * **HPC (computational) resources:** corehours, storage capacity, software licenses