diff --git a/README.md b/README.md
index 7faae65..d324a07 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ Yabar is a modern and lightweight status bar that is intended to be used along w
 A Yabar session should contain one or more *bars* within the same session. Each bar should contain one or more *blocks*. Each block should display some useful info to the user (free memory, CPU temperature, etc...).
 
 ## Installation
-Yabar requires libconfig>= 1.5, cairo, and pango. These dependencies can be installed through your distribution's package manager, such as `dnf install libconfig-devel cairo-devel pango-devel` on Fedora or `sudo apt-get install libcairo2-dev libpango1.0-dev libconfig-dev libxcb-randr0-dev` on Ubuntu.
+Yabar requires libconfig, cairo, and pango. These dependencies can be installed through your distribution's package manager, such as `dnf install libconfig-devel cairo-devel pango-devel` on Fedora or `sudo apt-get install libcairo2-dev libpango1.0-dev libconfig-dev libxcb-randr0-dev` on Ubuntu.
 
 You can install yabar as follows:
 
@@ -37,6 +37,8 @@ You can install yabar as follows:
 		make
 		sudo make install
 
+If you use libconfig 1.4.x (still used in Ubuntu 14.04 and Debian), please type `export CPPFLAGS=-DOLD_LIBCONFIG` then build using `make` as usual. 
+
 ## Configuration
 
 Yabar currently by default accepts configuration from the config file `~/.config/yabar/yabar.conf` or using `yabar -c [CONFIG_FILE]`. The config file should like something like this: