diff --git a/templates/dockerfiles/debian-slim/Dockerfile.j2 b/templates/dockerfiles/debian-slim/Dockerfile.j2
index fedba32a8..2da63cdb1 100644
--- a/templates/dockerfiles/debian-slim/Dockerfile.j2
+++ b/templates/dockerfiles/debian-slim/Dockerfile.j2
@@ -25,7 +25,7 @@ USER 0
 {% endif %}
 
 #ADDING MISSING PUBLIC KEYS
-apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 871920D1991BC93C
+RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 871920D1991BC93C
 
 # Install dependencies
 RUN apt-get update -y && \