diff --git a/test/check_testvectors.py b/test/check_testvectors.py
old mode 100755
new mode 100644
index ee11dcc3..1eb7b61a
--- a/test/check_testvectors.py
+++ b/test/check_testvectors.py
@@ -18,9 +18,9 @@ SCHEMEFULL = SCHEME.replace('/', '_')  # e.g. crypto_kem_kyber768
 SCHEMESHORT = SCHEME.split('/')[1].upper()
 
 def get_hash(scheme):
-  with open(f"{scheme}/META.yml", 'r') as stream:
-      meta = yaml.load(stream)
-      return hex(meta['testvectors-sha3-256']).replace('0x', '')
+    with open(f"{scheme}/META.yml", 'r') as stream:
+        meta = yaml.load(stream)
+        return hex(meta['testvectors-sha3-256']).replace('0x', '')
 
 
 expectedTestvectorsHash = get_hash(SCHEME)
@@ -29,10 +29,10 @@ subprocess.run(["make", "testvectors", f"SCHEME={SCHEME}"])
 implementations = [x for x in os.listdir('bin') if 'testvectors' in x and SCHEMEFULL in x]
 
 for impl in implementations:
-  testvectors = subprocess.run([f"bin/{impl}"],stdout=subprocess.PIPE)
-  testvectorsHash = hashlib.sha3_256(testvectors.stdout).hexdigest()
-  if testvectorsHash.lower() != expectedTestvectorsHash.lower():
-    print(f"testvectors of {SCHEME} should be {expectedTestvectorsHash}, but is {testvectorsHash}")
-    sys.exit(1)
+    testvectors = subprocess.run([f"bin/{impl}"],stdout=subprocess.PIPE)
+    testvectorsHash = hashlib.sha3_256(testvectors.stdout).hexdigest()
+    if testvectorsHash.lower() != expectedTestvectorsHash.lower():
+        print(f"testvectors of {SCHEME} should be {expectedTestvectorsHash}, but is {testvectorsHash}")
+        sys.exit(1)