diff --git a/facelib/S3FDExtractor.py b/facelib/S3FDExtractor.py
index 40be5d5..adafae9 100644
--- a/facelib/S3FDExtractor.py
+++ b/facelib/S3FDExtractor.py
@@ -7,7 +7,7 @@ import numpy as np
 from nnlib import nnlib
 
 class S3FDExtractor(object):
-    def __init__(self):
+    def __init__(self, do_dummy_predict=False):
         exec( nnlib.import_all(), locals(), globals() )
 
         model_path = Path(__file__).parent / "S3FD.h5"
@@ -16,7 +16,8 @@ class S3FDExtractor(object):
 
         self.model = nnlib.keras.models.load_model ( str(model_path) )
         
-        self.extract ( np.zeros( (1080,1920,3), dtype=np.uint8) )
+        if do_dummy_predict:
+            self.extract ( np.zeros( (640,640,3), dtype=np.uint8) )
 
     def __enter__(self):
         return self
diff --git a/mainscripts/Extractor.py b/mainscripts/Extractor.py
index b57fa86..d470931 100644
--- a/mainscripts/Extractor.py
+++ b/mainscripts/Extractor.py
@@ -76,7 +76,7 @@ class ExtractSubprocessor(Subprocessor):
                     self.e = facelib.DLIBExtractor(nnlib.dlib)
                 elif self.type == 'rects-s3fd':
                     nnlib.import_all (device_config)
-                    self.e = facelib.S3FDExtractor()
+                    self.e = facelib.S3FDExtractor(do_dummy_predict=True)
                 else:
                     raise ValueError ("Wrong type.")
 
@@ -88,7 +88,7 @@ class ExtractSubprocessor(Subprocessor):
                 self.e = facelib.FANExtractor()
                 self.e.__enter__()
                 if self.device_vram >= 2:
-                    self.second_pass_e = facelib.S3FDExtractor()
+                    self.second_pass_e = facelib.S3FDExtractor(do_dummy_predict=False)
                     self.second_pass_e.__enter__()
                 else:
                     self.second_pass_e = None