diff --git a/README b/README
index ea68a92..67f0d53 100644
--- a/README
+++ b/README
@@ -9,6 +9,9 @@ cairo (1.8.8)
 gtk2 (2.18.6)
 glib2 (2.22.4)
 
+Please note that you need to have a working pkg-config installation
+and that the Makefile is only compatible with GNU make.
+
 Configuration
 -------------
 You can modify some parts of zathura by editing the config.h file