diff --git a/Building-for-Ubuntu-16.04.md b/Building-for-Ubuntu-16.04.md
index 12503a0..e458a9d 100644
--- a/Building-for-Ubuntu-16.04.md
+++ b/Building-for-Ubuntu-16.04.md
@@ -11,13 +11,13 @@ The following instructions install `cmake` to `~/cmake`:
 
 ### GCC 7
 
-    sudo add-apt-repository ppa:jonathonf/gcc-7.1
+    sudo add-apt-repository ppa:jonathonf/gcc
     sudo apt-get update
     sudo apt-get install gcc-7 g++-7
 
 Remove the PPA (optional):
 
-    sudo add-apt-repository --remove ppa:jonathonf/gcc-7.1
+    sudo add-apt-repository --remove ppa:jonathonf/gcc
     sudo apt-get update
 
 ### Other prerequisites