diff --git a/readme-build.md b/readme-build.md
index 6c8a031..fab7057 100644
--- a/readme-build.md
+++ b/readme-build.md
@@ -25,6 +25,11 @@ Build executable
 
 Currently still using qmake, will eventually be ported to CMake.
 
+You probably want to create an alias for qmake, like:
+```
+alias qmake='<path-to-qt>/<compiler>/bin/qmake'
+```
+
 Please make sure you have both latest **ECL** (from development branch) and
 either **Qt5.15** or **Qt6** installed (see [readme-qt](readme-qt.md)).