diff --git a/pkgs/development/libraries/kde-frameworks-5.15/extra-cmake-modules/default.nix b/pkgs/development/libraries/kde-frameworks-5.15/extra-cmake-modules/default.nix
index 3c5b4155fa4..4e1b1aff3bd 100644
--- a/pkgs/development/libraries/kde-frameworks-5.15/extra-cmake-modules/default.nix
+++ b/pkgs/development/libraries/kde-frameworks-5.15/extra-cmake-modules/default.nix
@@ -4,6 +4,8 @@ kdeFramework {
   name = "extra-cmake-modules";
   patches = [ ./0001-extra-cmake-modules-paths.patch ];
 
+  setupHook = ./setup-hook.sh;
+
   # It is OK to propagate these inputs as long as
   # extra-cmake-modules is never a propagated input
   # of some other derivation.
diff --git a/pkgs/development/libraries/kde-frameworks-5.15/extra-cmake-modules/setup-hook.sh b/pkgs/development/libraries/kde-frameworks-5.15/extra-cmake-modules/setup-hook.sh
new file mode 100644
index 00000000000..a6fa6189240
--- /dev/null
+++ b/pkgs/development/libraries/kde-frameworks-5.15/extra-cmake-modules/setup-hook.sh
@@ -0,0 +1,27 @@
+addMimePkg() {
+    local propagated
+
+    if [[ -d "$1/share/mime" ]]; then
+        propagated=
+        for pkg in $propagatedBuildInputs; do
+            if [[ "z$pkg" == "z$1" ]]; then
+                propagated=1
+            fi
+        done
+        if [[ -z $propagated ]]; then
+            propagatedBuildInputs="$propagatedBuildInputs $1"
+        fi
+
+        propagated=
+        for pkg in $propagatedUserEnvPkgs; do
+            if [[ "z$pkg" == "z$1" ]]; then
+                propagated=1
+            fi
+        done
+        if [[ -z $propagated ]]; then
+            propagatedUserEnvPkgs="$propagatedUserEnvPkgs $1"
+        fi
+    fi
+}
+
+envHooks+=(addMimePkg)