diff --git a/README.md b/README.md
index a31be9b..f1956f7 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 When using this tool, you only need to pick the `wait-for` file as part of your project.
 
-[![Build Status](https://travis-ci.org/Eficode/wait-for.svg?branch=master)](https://travis-ci.org/Eficode/wait-for)
+[![Build Status](https://travis-ci.org/eficode/wait-for.svg?branch=master)](https://travis-ci.org/eficode/wait-for)
 
 ## Usage
 
@@ -48,4 +48,4 @@ services:
 Ironically testing is done using [bats](https://github.com/sstephenson/bats), which on the other hand is depending on [bash](https://en.wikipedia.org/wiki/Bash_(Unix_shell)).
 
     docker build -t wait-for .
-    docker run -t wait-for
\ No newline at end of file
+    docker run -t wait-for
diff --git a/wait-for b/wait-for
index ddfc39e..cef482a 100755
--- a/wait-for
+++ b/wait-for
@@ -21,8 +21,12 @@ USAGE
 
 wait_for() {
   for i in `seq $TIMEOUT` ; do
-    nc -z "$HOST" "$PORT" > /dev/null 2>&1
-    
+    if which nc > /dev/null; then
+      nc -z "$HOST" "$PORT" > /dev/null 2>&1
+    else
+      (echo > /dev/tcp/$HOST/$PORT) > /dev/null 2>&1
+    fi
+
     result=$?
     if [ $result -eq 0 ] ; then
       if [ $# -gt 0 ] ; then