diff --git a/src/backends/reference/RefLayerSupport.cpp b/src/backends/reference/RefLayerSupport.cpp
index 65ae14f..87d2921 100644
--- a/src/backends/reference/RefLayerSupport.cpp
+++ b/src/backends/reference/RefLayerSupport.cpp
@@ -968,6 +968,9 @@
         supported &= CheckSupportRule(BiasAndWeightsTypesCompatible(weights, supportedBiasTypes), reasonIfUnsupported,
                                       "Reference Fully Connected: bias type inferred from weights is incompatible.");
 
+        supported &= CheckSupportRule(TensorNumDimensionsAreCorrect(biases, 1U), reasonIfUnsupported,
+                                      "Reference Fully Connected: bias must have 1 dimension.");
+
     }
 
     return supported;