diff --git a/README.md b/README.md
index b83214b..3915593 100644
--- a/README.md
+++ b/README.md
@@ -26,3 +26,9 @@ $ lch file.zip
 ```
 sudo ./install.sh
 ```
+
+## Testing with docker
+```
+$ git clone https://gitea.hatthieves.es/cloud/lch
+$ cd lch && docker run -it --rm --name lch --workdir /lch -v $(pwd):/lch putyourdistributionhere ./lch -h
+```
\ No newline at end of file
diff --git a/TODO b/TODO
index 22abeb1..e3a8cfa 100644
--- a/TODO
+++ b/TODO
@@ -15,3 +15,5 @@
 
  - ¿Ficheros que soporta?
     AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z.
+
+# Hacer desinstalador
\ No newline at end of file
diff --git a/lch b/lch
index 439ed04..97aea9a 100755
--- a/lch
+++ b/lch
@@ -1,12 +1,12 @@
 #!/bin/bash
-VERSION=0.3r2
+VERSION=0.3r3
 DEST=$1
 shift 1
 ORIG=$@
 
-source /usr/lib/lch/compressor.sh || source ./lib/compressor.sh
-source /usr/lib/lch/decompressor.sh || source ./lib/decompressor.sh
-source /usr/lib/lch/check.sh || source ./lib/check.sh
+if [ -z /usr/lib/lch/compressor.sh ]; then . /usr/lib/lch/compressor.sh; else . ./lib/compressor.sh; fi
+if [ -z /usr/lib/lch/decompressor.sh ]; then . /usr/lib/lch/decompressor.sh; else . ./lib/decompressor.sh; fi
+if [ -z /usr/lib/lch/check.sh ]; then . /usr/lib/lch/check.sh; else . ./lib/check.sh; fi
 
 function help()
 {