diff --git a/scripts/mk_genfile_common.py b/scripts/mk_genfile_common.py
index 4c7565dac..943d4052a 100644
--- a/scripts/mk_genfile_common.py
+++ b/scripts/mk_genfile_common.py
@@ -376,3 +376,18 @@ def mk_mem_initializer_cpp_internal(component_src_dirs, path):
     fout.write('}\n')
     fout.close()
     return fullname
+
+###############################################################################
+# Functions for generating ``database.h``
+###############################################################################
+
+def mk_pat_db_internal(inputFilePath, outputFilePath):
+    """
+        Generate ``g_pattern_database[]`` declaration header file.
+    """
+    with open(inputFilePath, 'r') as fin:
+        with open(outputFilePath, 'w') as fout:
+            fout.write('static char const g_pattern_database[] =\n')
+            for line in fin:
+                fout.write('"%s\\n"\n' % line.strip('\n'))
+            fout.write(';\n')
diff --git a/scripts/mk_pat_db.py b/scripts/mk_pat_db.py
index 3f2e7c507..76dc7ba48 100755
--- a/scripts/mk_pat_db.py
+++ b/scripts/mk_pat_db.py
@@ -3,32 +3,27 @@
 Reads a pattern database and generates the corresponding
 header file.
 """
-import mk_util
+import mk_genfile_common
 import argparse
 import logging
 import os
 import sys
 
 def main(args):
-  logging.basicConfig(level=logging.INFO)
-  parser = argparse.ArgumentParser(description=__doc__)
-  parser.add_argument("db_file", help="pattern database file")
-  parser.add_argument("output_file", help="output header file path")
-  pargs = parser.parse_args(args)
+    logging.basicConfig(level=logging.INFO)
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument("db_file", help="pattern database file")
+    parser.add_argument("output_file", help="output header file path")
+    pargs = parser.parse_args(args)
 
-  if not os.path.exists(pargs.db_file):
-    logging.error('"{}" does not exist'.format(pargs.db_file))
-    return 1
+    if not os.path.exists(pargs.db_file):
+        logging.error('"{}" does not exist'.format(pargs.db_file))
+        return 1
 
-  if (os.path.exists(pargs.output_file) and
-     not os.path.isfile(pargs.output_file)):
-       logging.error('Refusing to overwrite "{}"'.format(
-         pargs.output_file))
-       return 1
-
-  mk_util.mk_pat_db_internal(pargs.db_file, pargs.output_file)
-  return 0
+    mk_genfile_common.mk_pat_db_internal(pargs.db_file, pargs.output_file)
+    logging.info('Generated "{}"'.format(pargs.output_file))
+    return 0
 
 if __name__ == '__main__':
-  sys.exit(main(sys.argv[1:]))
+    sys.exit(main(sys.argv[1:]))
 
diff --git a/scripts/mk_util.py b/scripts/mk_util.py
index 913914fef..47afa2251 100644
--- a/scripts/mk_util.py
+++ b/scripts/mk_util.py
@@ -2621,17 +2621,9 @@ def mk_pat_db():
     c = get_component(PATTERN_COMPONENT)
     fin  = os.path.join(c.src_dir, 'database.smt2')
     fout = os.path.join(c.src_dir, 'database.h')
-    mk_pat_db_internal(fin, fout)
-
-def mk_pat_db_internal(inputFilePath, outputFilePath):
-    with open(inputFilePath, 'r') as fin:
-        with open(outputFilePath, 'w') as fout:
-            fout.write('static char const g_pattern_database[] =\n')
-            for line in fin:
-                fout.write('"%s\\n"\n' % line.strip('\n'))
-            fout.write(';\n')
+    mk_genfile_common.mk_pat_db_internal(fin, fout)
     if VERBOSE:
-        print("Generated '%s'" % outputFilePath)
+        print("Generated '{}'".format(fout))
 
 # Update version numbers
 def update_version():