Removed apt-get/apt inconsistency (just using apt now).
diff --git a/_pages/documentation/learning_gem5/part1/building.md b/_pages/documentation/learning_gem5/part1/building.md
index 9591102..56b91d6 100644
--- a/_pages/documentation/learning_gem5/part1/building.md
+++ b/_pages/documentation/learning_gem5/part1/building.md
@@ -276,5 +276,5 @@
 the following command.
 
 ```
-sudo apt install automake
+sudo apt-get install automake
 ```