diff --git a/common-sw.nix b/common-sw.nix
index 1795e7a..44f99e3 100644
--- a/common-sw.nix
+++ b/common-sw.nix
@@ -9,6 +9,7 @@
     chromium
     firefox
     qalculate-gtk
+    libqalculate
     viewnior
     gnupg
     pass xclip pwgen