diff --git a/src/backends/reference/RefBackend.hpp b/src/backends/reference/RefBackend.hpp
index 441f4eb..2855957 100644
--- a/src/backends/reference/RefBackend.hpp
+++ b/src/backends/reference/RefBackend.hpp
@@ -12,7 +12,8 @@
 const BackendCapabilities cpuRefCapabilities("CpuRef",
                                              {
                                                     {"NonConstWeights", true},
-                                                    {"AsyncExecution", true}
+                                                    {"AsyncExecution", true},
+                                                    {"ConstantTensorsAsInputs", true}
                                              });
 
 const std::set<armnn::BackendCapability> oldCpuRefCapabilities {