diff --git a/README.md b/README.md
index 14e46e5..081dd3c 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,8 @@ make install
  * `LDFLAGS`: Flags passed to the linker.
  * `BUILD_DIR`: Destination directory for the build.
  * `PREFIX`: System prefix. Default: `/usr/local`.
+ * `DESTDIR`: Destination directory for install. This is used by system
+   package system such as dpkg, rpm and pacman.
  * `PKGCONFIG`: `pkg-config` executable path.
  * `STRIP`: `strip` executable path.
  * `DONT_STRIP`: Set this is the installed DSO is not to be stripped of its
@@ -36,5 +38,5 @@ run `make`, e.g.:
 CC=arm-linux-gnueabihf-gcc make
 ```
 If you have a `pkg-config` wrapper at `<triplet>-pkg-config` it will be run
-instead if `pkg-config`, but pkg-config can also be overridden by setting the
+instead if `pkg-config`, but `pkg-config` can also be overridden by setting the
 `PKGCONFIG` environment variable prior to running `make`.