diff --git a/Worker.md b/Worker.md
index 3c31767..6a3a4d0 100644
--- a/Worker.md
+++ b/Worker.md
@@ -35,7 +35,7 @@ These properties help the broker decide which worker is suitable for processing
 a request. 
 
 The **hardware group** is a string identifier used to group worker machines with 
-simmilar hardware configuration -- for example "i7-4560-quad-ssd". It's 
+similar hardware configuration -- for example "i7-4560-quad-ssd". It's 
 important for assignments where running times are compared to those of reference 
 solutions -- we have to make sure that both programs run on simmilar hardware.