diff --git a/HACKING_QUICKSTART.md b/HACKING_QUICKSTART.md
index dac6d37aa42..53e2e346eef 100644
--- a/HACKING_QUICKSTART.md
+++ b/HACKING_QUICKSTART.md
@@ -14,7 +14,7 @@ Building Servo is quite easy. Install the prerequisites described in the [README
 
 *Note: on Mac, you might run into a SSL issue while compiling. You'll find a solution to this problem [here](https://github.com/sfackler/rust-openssl/issues/255).*
 
-The `-d` option means "debug build". You can also build with the `-r` option which means "release build". Buidling with `-d` will allow you to use a debugger (lldb). A `-r` build is more performant. Release builds are slower to build.
+The `-d` option means "debug build". You can also build with the `-r` option which means "release build". Building with `-d` will allow you to use a debugger (lldb). A `-r` build is more performant. Release builds are slower to build.
 
 You can use and build a release build and a debug build in parallel.