diff --git a/backends/cortex_m/quantizer/pattern_checkers.py b/backends/cortex_m/quantizer/pattern_checkers.py
index 0210cf4dee3..a4c5d5ee4cb 100644
--- a/backends/cortex_m/quantizer/pattern_checkers.py
+++ b/backends/cortex_m/quantizer/pattern_checkers.py
@@ -94,10 +94,7 @@ def check_quantization_config(cls, quantization_config):
         is_per_tensor = PatternCheck.is_per_tensor(
             quantization_config.input_activation
         ) and PatternCheck.is_per_tensor(quantization_config.output_activation)
-        is_int8 = (
-            quantization_config.input_activation.dtype == torch.int8
-            and quantization_config.output_activation.dtype == torch.int8
-        )
+        is_int8 = cls.is_int8_activations(quantization_config)
         return is_per_tensor and is_int8
 
 
@@ -128,10 +125,7 @@ def check_quantization_config(cls, quantization_config):
         """
         Checks that the quantization config uses per-tensor int8 quantization.
         """
-        is_int8 = (
-            quantization_config.input_activation.dtype == torch.int8
-            and quantization_config.output_activation.dtype == torch.int8
-        )
+        is_int8 = cls.is_int8_activations(quantization_config)
         return is_int8