diff --git a/src/c/threads/process.d b/src/c/threads/process.d
index 03474df6..bde09e30 100755
--- a/src/c/threads/process.d
+++ b/src/c/threads/process.d
@@ -365,7 +365,12 @@ ecl_import_current_thread(cl_object name, cl_object bindings)
       cl_object p = processes->vector.self.t[i];
       if (!Null(p)
           &&
-          GetThreadId(p->process.thread) == GetThreadId(current))
+#ifdef ECL_WINDOWS_THREADS
+          GetThreadId(p->process.thread) == GetThreadId(current)
+#else
+	      p->process.thread == current
+#endif
+	      )
         return 0;
     }
   }