diff --git a/src/parse.py b/src/parse.py
index 1af5010..3ab3b36 100644
--- a/src/parse.py
+++ b/src/parse.py
@@ -378,7 +378,11 @@
 
 
 def parse_file(filename):
-    code = open(filename).read()
+    try:
+        code = open(filename, encoding="utf-8").read()
+    except UnicodeDecodeError:
+        print("Parse error: %s is not valid UTF-8" % (filename))
+        return None
     try:
         tokenizer = Tokenizer(code, filename)
         tokens = tokenizer.tokenize()
diff --git a/tests/test_parse.py b/tests/test_parse.py
index 22e1588..45e149b 100644
--- a/tests/test_parse.py
+++ b/tests/test_parse.py
@@ -1,10 +1,10 @@
 from hypothesis import given
-from hypothesis.strategies import binary
+from hypothesis.strategies import text
 
 from src import parse
 
 
-@given(binary(), binary())
+@given(text(), text())
 def test_parser_fuzz(code, filename):
     try:
         tokenizer = parse.Tokenizer(code, filename)