diff --git a/Readme.md b/Readme.md
index d4c63f0..c6b54c7 100644
--- a/Readme.md
+++ b/Readme.md
@@ -32,6 +32,8 @@ or
  `n` by default installs node to _/usr/local/n/versions_, from
  which it can see what you have currently installed, and activate previously installed versions of node when `n <version>` is invoked again.
 
+ Activated nodes are then installed to the prefix _/usr/local_.
+
  To alter where `n` operates simply export __N_PREFIX__ to whatever you prefer.
 
 ## License 
diff --git a/bin/n b/bin/n
index 298687a..2abd72c 100755
--- a/bin/n
+++ b/bin/n
@@ -115,17 +115,27 @@ install_node() {
   # already active
   test "$version" = "$installed" && return
 
+  # installed
+  local dir=$VERSIONS_DIR/$version
+  local prefix=/usr/local
+  if test -d $dir; then
+    cd $dir \
+      && cp -fr $dir/include/node $prefix/include \
+      && cp -f $dir/bin/node $prefix/bin/node
   # install
-  local dir="node-v$version"
-  cd $PREFIX/n \
-    && $GET "http://nodejs.org/dist/node-v$version.tar.gz" \
-    > "$dir.tar.gz" \
-    && tar -zxf "$dir.tar.gz" \
-    && cd $dir \
-    && ./configure --prefix $VERSIONS_DIR/$version\
-    && make install \
-    && cd .. \
-    && cleanup $version
+  else
+    local dir="node-v$version"
+    cd $PREFIX/n \
+      && $GET "http://nodejs.org/dist/node-v$version.tar.gz" \
+      > "$dir.tar.gz" \
+      && tar -zxf "$dir.tar.gz" \
+      && cd $dir \
+      && ./configure --prefix $VERSIONS_DIR/$version\
+      && make install \
+      && cd .. \
+      && cleanup $version \
+      && n $version
+  fi
 }
 
 #