diff --git a/Makefile b/Makefile
deleted file mode 100644
index 4653420..0000000
--- a/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-index.html: index.md head.html
-	./bin/mmark-linux-amd64 -head head.html -html index.md > index.html
-	./bin/toc.sh index.html index.md
\ No newline at end of file
diff --git a/bin/toc.sh b/bin/toc.sh
index 667fe0c..bc51669 100755
--- a/bin/toc.sh
+++ b/bin/toc.sh
@@ -44,16 +44,19 @@ fi
 ts="<\!--ts-->"
 te="<\!--te-->"
 
+existingTOC="$(cat "$MARKDOWN" | sed -n "/${ts}/,/${te}/p" | sed '1,1d; $d')"
 
-tmp="$(mktemp)"
-function finish {
-  rm "$tmp"
-}
-trap finish EXIT
+if [ "$toc" != "$existingTOC" ]; then
+  tmp="$(mktemp)"
+  function finish {
+    rm "$tmp"
+  }
+  trap finish EXIT
 
-echo "${toc}" > "${tmp}"
+  echo "${toc}" > "${tmp}"
 
-# clear old toc
-$sed "/${ts}/,/${te}/{//!d;}" "$MARKDOWN"
-# insert toc
-$sed "/${ts}/r ${tmp}" "$MARKDOWN"
\ No newline at end of file
+  # clear old toc
+  $sed "/${ts}/,/${te}/{//!d;}" "$MARKDOWN"
+  # insert toc
+  $sed "/${ts}/r ${tmp}" "$MARKDOWN"
+fi
\ No newline at end of file
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..c306b92
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
+
+$DIR/bin/mmark-linux-amd64 -head "$DIR/head.html" -html "$DIR/index.md" > "$DIR/index.html"
+$DIR/bin/toc.sh "$DIR/index.html" "$DIR/index.md"
\ No newline at end of file
diff --git a/watch.sh b/watch.sh
index 5350510..26e36a5 100755
--- a/watch.sh
+++ b/watch.sh
@@ -1,3 +1,8 @@
 #!/bin/bash
 
-./bin/reflex --decoration=none --start-service=true --glob='*' --inverse-regex='index\.html' -- sh -c "make"
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
+
+(
+  cd "$DIR"
+  ./bin/reflex --decoration=none --start-service=true --glob='*' --inverse-regex='index\.html' -- sh -c "./build.sh"
+)