diff --git a/pkgs/applications/science/chemistry/cp2k/default.nix b/pkgs/applications/science/chemistry/cp2k/default.nix
index 29b983cde536..f81e35995719 100644
--- a/pkgs/applications/science/chemistry/cp2k/default.nix
+++ b/pkgs/applications/science/chemistry/cp2k/default.nix
@@ -106,6 +106,7 @@ in stdenv.mkDerivation rec {
     mkdir -p $out/bin $out/share/cp2k
 
     cp exe/${arch}/* $out/bin
+    rm $out/bin/*_unittest.*
 
     for i in cp2k cp2k_shell graph; do
       wrapProgram $out/bin/$i.${cp2kVersion} \