diff --git a/var/spack/repos/builtin/packages/acts/package.py b/var/spack/repos/builtin/packages/acts/package.py
index 6d0ad04e21..624e03cfae 100644
--- a/var/spack/repos/builtin/packages/acts/package.py
+++ b/var/spack/repos/builtin/packages/acts/package.py
@@ -391,4 +391,8 @@ def plugin_cmake_variant(plugin_name, spack_variant):
             cxxstd = spec["root"].variants["cxxstd"].value
             args.append("-DCMAKE_CXX_STANDARD={0}".format(cxxstd))
 
+        if "+python" in spec:
+            python = spec["python"].command.path
+            args.append("-DPython_EXECUTABLE={0}".format(python))
+
         return args