diff --git a/README.md b/README.md
index 4c69c825..369dd30e 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,9 @@ Run the following commands:
 	. env/bin/activate
 	make install_web
 
+Pokud install_web říká Error: pg_config executable not found. nainstaluj si libpq-dev
+Pokud chybová hláška obsahuje #include <Python.h>, nainstaluj si python3-dev
+
 After finishing development, run "deactivate".
 
 Make commands