diff --git a/src/backends/aclCommon/ArmComputeSubgraphUtils.hpp b/src/backends/aclCommon/ArmComputeSubgraphUtils.hpp
index 79744ec..d969d5b 100644
--- a/src/backends/aclCommon/ArmComputeSubgraphUtils.hpp
+++ b/src/backends/aclCommon/ArmComputeSubgraphUtils.hpp
@@ -71,9 +71,8 @@
         case armnn::DataType::Float32:
             return weightsType;
         case armnn::DataType::QAsymmS8:
-            return armnn::DataType::Signed32;
         case armnn::DataType::QAsymmU8:
-            return armnn::DataType::Signed32;
+        case armnn::DataType::QSymmS8:
         case armnn::DataType::QSymmS16:
             return armnn::DataType::Signed32;
         default:
diff --git a/src/backends/backendsCommon/LayerSupportRules.hpp b/src/backends/backendsCommon/LayerSupportRules.hpp
index ddecc82..e7aef0a 100644
--- a/src/backends/backendsCommon/LayerSupportRules.hpp
+++ b/src/backends/backendsCommon/LayerSupportRules.hpp
@@ -23,11 +23,10 @@
         case armnn::DataType::Float16:
         case armnn::DataType::Float32:
             return weightsType;
-        case armnn::DataType::QAsymmU8:
-            return armnn::DataType::Signed32;
-        case armnn::DataType::QSymmS16:
-            return armnn::DataType::Signed32;
         case armnn::DataType::QAsymmS8:
+        case armnn::DataType::QAsymmU8:
+        case armnn::DataType::QSymmS8:
+        case armnn::DataType::QSymmS16:
             return armnn::DataType::Signed32;
         default:
             ARMNN_ASSERT_MSG(false, "GetBiasTypeFromWeightsType(): Unsupported data type.");
diff --git a/src/backends/backendsCommon/test/WorkloadTestUtils.hpp b/src/backends/backendsCommon/test/WorkloadTestUtils.hpp
index 5832391..3173561 100644
--- a/src/backends/backendsCommon/test/WorkloadTestUtils.hpp
+++ b/src/backends/backendsCommon/test/WorkloadTestUtils.hpp
@@ -100,9 +100,8 @@
         case armnn::DataType::Float32:
             return weightsType;
         case armnn::DataType::QAsymmS8:
-            return armnn::DataType::Signed32;
         case armnn::DataType::QAsymmU8:
-            return armnn::DataType::Signed32;
+        case armnn::DataType::QSymmS8:
         case armnn::DataType::QSymmS16:
             return armnn::DataType::Signed32;
         default: