diff --git a/kernel_tuner/core.py b/kernel_tuner/core.py
index 3c3ba792..4dbce082 100644
--- a/kernel_tuner/core.py
+++ b/kernel_tuner/core.py
@@ -494,7 +494,7 @@ def check_kernel_output(self, func, gpu_args, instance, answer, atol, verify, ve
         # run the kernel
         check = self.run_kernel(func, gpu_args, instance)
         if not check:
-            # runtime failure occured that should be ignored, skip correctness check
+            # runtime failure occurred that should be ignored, skip correctness check
             return
 
         # retrieve gpu results to host memory
@@ -894,7 +894,7 @@ def split_argument_list(argument_list):
         match = re.match(regex, arg, re.S)
         if not match:
             raise ValueError("error parsing templated kernel argument list")
-        type_list.append(re.sub(r"\s+", " ", match.group(1).strip(), re.S))
+        type_list.append(re.sub(r"\s+", " ", match.group(1).strip(), flags=re.S))
         name_list.append(match.group(2).strip())
     return type_list, name_list