diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6d7c807..6ca8a1f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -172,7 +172,13 @@ endif ()
 set(CONFIGURATION_PACKAGE_SUFFIX
     ""
     CACHE STRING "sets the suffix for find_package() calls to packages configured via c++utilities")
-find_package(c++utilities${CONFIGURATION_PACKAGE_SUFFIX} 5.5.0 REQUIRED)
+set(PACKAGE_NAMESPACE
+    ""
+    CACHE STRING "sets the namespace (prefix) for find_package() calls to packages configured via c++utilities")
+if (PACKAGE_NAMESPACE)
+  set(PACKAGE_NAMESPACE_PREFIX "${PACKAGE_NAMESPACE}-")
+endif ()
+find_package(${PACKAGE_NAMESPACE_PREFIX}c++utilities${CONFIGURATION_PACKAGE_SUFFIX} 5.5.0 REQUIRED)
 use_cpp_utilities()
 
 # include modules to apply configuration