diff --git a/Research-simulation.md b/Research-simulation.md
index 0a22291..87d4955 100644
--- a/Research-simulation.md
+++ b/Research-simulation.md
@@ -4,7 +4,7 @@ This page lists **mandatory** rules to be followed when working with code and
 data.
 
 ## Working with code
-The objectives of these rules is to ensure:
+The objective of these rules is to ensure:
 
 1. Code developed in the lab is preserved.
 2. Code can be easily shared in the lab and outside.