diff --git a/atomics/T1553.004/T1553.004.md b/atomics/T1553.004/T1553.004.md
index 506397b9..9c0a9757 100644
--- a/atomics/T1553.004/T1553.004.md
+++ b/atomics/T1553.004/T1553.004.md
@@ -141,7 +141,7 @@ Creates a root CA with openssl
 
 ```sh
 mv #{cert_filename} /usr/local/share/ca-certificates
-echo sudo update-ca-certificates
+sudo update-ca-certificates
 ```
 
 
diff --git a/atomics/T1553.004/T1553.004.yaml b/atomics/T1553.004/T1553.004.yaml
index cafb837c..000738df 100644
--- a/atomics/T1553.004/T1553.004.yaml
+++ b/atomics/T1553.004/T1553.004.yaml
@@ -80,7 +80,7 @@ atomic_tests:
   executor:
     command: |
       mv #{cert_filename} /usr/local/share/ca-certificates
-      echo sudo update-ca-certificates
+      sudo update-ca-certificates
     name: sh
     elevation_required: true
 - name: Install root CA on macOS