diff --git a/delegate/src/DelegateUtils.hpp b/delegate/src/DelegateUtils.hpp
index 0537ba9..fad07ff 100644
--- a/delegate/src/DelegateUtils.hpp
+++ b/delegate/src/DelegateUtils.hpp
@@ -342,14 +342,26 @@
         case kTfLiteUInt8:
             return armnn::DataType::QAsymmU8;
         case kTfLiteInt8:
-            if (tfLiteTensor.params.zero_point == 0)
+        {
+            auto quantizationInfo = tfLiteTensor.quantization;
+            if (quantizationInfo.type == kTfLiteAffineQuantization)
             {
-                return armnn::DataType::QSymmS8;
+                auto* quantization =
+                    reinterpret_cast<TfLiteAffineQuantization*>(tfLiteTensor.quantization.params);
+                if (quantization->zero_point != nullptr && quantization->zero_point->size == 1)
+                {
+                    return armnn::DataType::QAsymmS8;
+                }
+                else
+                {
+                    return armnn::DataType::QSymmS8;
+                }
             }
             else
             {
                 return armnn::DataType::QAsymmS8;
             }
+        }
         case kTfLiteInt16:
             return armnn::DataType::QSymmS16;
         case kTfLiteInt32: