diff --git a/speech2text/accuracy_eval.py b/speech2text/accuracy_eval.py
index 3c7466ff8f..eb6cc53299 100644
--- a/speech2text/accuracy_eval.py
+++ b/speech2text/accuracy_eval.py
@@ -28,6 +28,7 @@
 
 
 max_duration = float(os.environ.get("MAX_DURATION", "30.0"))
+
 labels = [
     " ",
     "a",
@@ -56,7 +57,22 @@
     "x",
     "y",
     "z",
-    "'"]
+    "'", 
+    "0",
+    "1",
+    "2",
+    "3",
+    "4", 
+    "5",
+    "6",
+    "7",
+    "8",
+    "9",
+    "$",
+    "%",
+    "+",
+    "-"]
+
 dtype_map = {
     "int8": 'b',
     "int16": 'h',
diff --git a/speech2text/reference_SUT.py b/speech2text/reference_SUT.py
index fcd5385507..63d491a00f 100644
--- a/speech2text/reference_SUT.py
+++ b/speech2text/reference_SUT.py
@@ -90,7 +90,22 @@ def get_start_cores(start_cores="0"):
     "x",
     "y",
     "z",
-    "'"]
+    "'", 
+    "0",
+    "1",
+    "2",
+    "3",
+    "4", 
+    "5",
+    "6",
+    "7",
+    "8",
+    "9",
+    "$",
+    "%",
+    "+",
+    "-"]
+
 labels_dict = {}
 for i in range(len(labels)):
     labels_dict[labels[i]] = i