diff --git a/pkgs/kde/frameworks/ki18n/default.nix b/pkgs/kde/frameworks/ki18n/default.nix
index 2a082a9dfe57..02b03f875ffb 100644
--- a/pkgs/kde/frameworks/ki18n/default.nix
+++ b/pkgs/kde/frameworks/ki18n/default.nix
@@ -1,9 +1,10 @@
 {
   mkKdeDerivation,
   qtdeclarative,
+  python3,
 }:
 mkKdeDerivation {
   pname = "ki18n";
 
-  extraBuildInputs = [qtdeclarative];
+  extraBuildInputs = [qtdeclarative python3];
 }