diff --git a/guix.scm b/guix.scm
index df02d09..f3bd16e 100644
--- a/guix.scm
+++ b/guix.scm
@@ -138,6 +138,7 @@
                              karchive
                              kcoreaddons
                              ki18n
+                             sonnet
                              ;; corrosion is needed for build and is yet to
                              ;; be packaged.
                              corrosion
diff --git a/shell.nix b/shell.nix
index 347622a..be8819a 100644
--- a/shell.nix
+++ b/shell.nix
@@ -36,6 +36,7 @@ mkShell rec {
     # libsForQt5.breeze-qt5
     libsForQt5.qqc2-desktop-style
     libsForQt5.karchive
+    libsForQt5.sonnet
     # libsForQt5.kirigami-addons
     # libsForQt5.ki18n
     # libsForQt5.kcoreaddons