diff --git a/clue.spec b/clue.spec
new file mode 100644
index 00000000000..e885bfa2f17
--- /dev/null
+++ b/clue.spec
@@ -0,0 +1,17 @@
+### RPM external clue 1.0.0
+## NOCOMPILER
+
+%define git_commit V_%(echo %{realversion} | tr '.' '_')
+
+Source: https://gitlab.cern.ch/kalos/%{n}/-/archive/%{git_commit}/%{n}-%{git_commit}.tar.gz
+Requires: alpaka
+
+%prep
+%setup -n %{n}-%{git_commit}
+
+%build
+
+%install
+cp -ar clueLib/include %{i}/include
+
+%post
diff --git a/cmssw-tools.spec b/cmssw-tools.spec
index 50bd89cc145..8c28b5675ff 100644
--- a/cmssw-tools.spec
+++ b/cmssw-tools.spec
@@ -155,6 +155,7 @@ Requires: gperftools
 %{!?without_cuda:Requires: cuda cuda-compatible-runtime gdrcopy cudnn}
 
 Requires: alpaka
+Requires: clue
 Requires: libunwind
 %ifnarch ppc64le
 Requires: igprof
diff --git a/scram-tools.file/tools/clue/clue.xml b/scram-tools.file/tools/clue/clue.xml
new file mode 100644
index 00000000000..c91ff45584b
--- /dev/null
+++ b/scram-tools.file/tools/clue/clue.xml
@@ -0,0 +1,7 @@
+<tool name="clue" version="@TOOL_VERSION@">
+  <use name="alpaka"/>
+  <client>
+    <environment name="CLUE_BASE" default="@TOOL_ROOT@"/>
+    <environment name="INCLUDE"   default="$CLUE_BASE/include"/>
+  </client>
+</tool>