diff --git a/README.md b/README.md
index 90d307f..a53e0eb 100644
--- a/README.md
+++ b/README.md
@@ -59,7 +59,7 @@ each project for the new configure options to be taken into use.
 Building in MSYS2
 -----------------
 
-To build in MSYS2, install the following set of packages with `pacman -S`:
+To build in MSYS2, install the following set of packages with `pacman -S --needed`:
 
     git subversion mingw-w64-x86_64-gcc mingw-w64-x86_64-ninja mingw-w64-x86_64-cmake make mingw-w64-x86_64-python3