diff --git a/libprocessgroup/setup/cgroup_map_write.cpp b/libprocessgroup/setup/cgroup_map_write.cpp
index d5bce8f..3831ef2 100644
--- a/libprocessgroup/setup/cgroup_map_write.cpp
+++ b/libprocessgroup/setup/cgroup_map_write.cpp
@@ -152,8 +152,10 @@
 
     if (!root_path.empty()) {
         path = root_path;
-        path += "/";
-        path += cgroup_path;
+        if (cgroup_path != ".") {
+            path += "/";
+            path += cgroup_path;
+        }
     } else {
         path = cgroup_path;
     }