diff --git a/detect_secrets/core/secrets_collection.py b/detect_secrets/core/secrets_collection.py
index 147fca165..0a4773f35 100644
--- a/detect_secrets/core/secrets_collection.py
+++ b/detect_secrets/core/secrets_collection.py
@@ -52,17 +52,23 @@ def __init__(
         self.output_verified_false = output_verified_false
 
     @classmethod
-    def load_baseline_from_string(cls, string):
+    def load_baseline_from_string(cls, string, plugin_filenames=None):
         """Initializes a SecretsCollection object from string.
 
         :type string: str
         :param string: string to load SecretsCollection from.
 
+        :type plugin_filenames: tuple
+        :param plugin_filenames: list of plugins to import
+
         :rtype: SecretsCollection
         :raises: IOError
         """
         try:
-            return cls.load_baseline_from_dict(json.loads(string))
+            return cls.load_baseline_from_dict(
+                json.loads(string),
+                plugin_filenames=plugin_filenames,
+            )
         except (IOError, ValueError):
             log.error('Incorrectly formatted baseline!')
             raise
diff --git a/detect_secrets/pre_commit_hook.py b/detect_secrets/pre_commit_hook.py
index 39c85f5df..be703dad6 100644
--- a/detect_secrets/pre_commit_hook.py
+++ b/detect_secrets/pre_commit_hook.py
@@ -34,7 +34,10 @@ def main(argv=None):
     try:
         # If baseline is provided, we first want to make sure
         # it's valid, before doing any further computation.
-        baseline_collection = get_baseline(args.baseline[0])
+        baseline_collection = get_baseline(
+            args.baseline[0],
+            plugin_filenames=args.plugin_filenames,
+        )
     except (IOError, TypeError, ValueError):
         # Error logs handled within logic.
         return 1
@@ -123,8 +126,14 @@ def main(argv=None):
     return 0
 
 
-def get_baseline(baseline_filename):
+def get_baseline(baseline_filename, plugin_filenames=None):
     """
+    :type baseline_filename: string
+    :param baseline_filename: name of the baseline file
+
+    :type plugin_filenames: tuple
+    :param plugin_filenames: list of plugins to import
+
     :raises: IOError
     :raises: ValueError
     """
@@ -137,6 +146,7 @@ def get_baseline(baseline_filename):
         _get_baseline_string_from_file(
             baseline_filename,
         ),
+        plugin_filenames=plugin_filenames,
     )