diff --git a/modules/api/api.py b/modules/api/api.py
index 648bd6a8..efcedbba 100644
--- a/modules/api/api.py
+++ b/modules/api/api.py
@@ -4,7 +4,7 @@ import time
 import uvicorn
 from threading import Lock
 from io import BytesIO
-from gradio.processing_utils import encode_pil_to_base64, decode_base64_to_file, decode_base64_to_image
+from gradio.processing_utils import decode_base64_to_file
 from fastapi import APIRouter, Depends, FastAPI, HTTPException
 from fastapi.security import HTTPBasic, HTTPBasicCredentials
 from secrets import compare_digest
@@ -41,6 +41,10 @@ def setUpscalers(req: dict):
     reqDict.pop('upscaler_2')
     return reqDict
 
+def decode_base64_to_image(encoding):
+    if encoding.startswith("data:image/"):
+        encoding = encoding.split(";")[1].split(",")[1]
+    return Image.open(BytesIO(base64.b64decode(encoding)))
 
 def encode_pil_to_base64(image):
     with io.BytesIO() as output_bytes:
@@ -134,10 +138,7 @@ class Api:
 
         mask = img2imgreq.mask
         if mask:
-            if mask.startswith("data:image/"):
-                mask = decode_base64_to_image(mask)
-            else:
-                mask = Image.open(BytesIO(base64.b64decode(mask)))
+            mask = decode_base64_to_image(mask)
 
         populate = img2imgreq.copy(update={ # Override __init__ params
             "sd_model": shared.sd_model,
@@ -151,10 +152,7 @@ class Api:
 
         imgs = []
         for img in init_images:
-            if img.startswith("data:image/"):
-                img = decode_base64_to_image(img)
-            else:
-                img = Image.open(BytesIO(base64.b64decode(img)))
+            img = decode_base64_to_image(img)
             imgs = [img] * p.batch_size
 
         p.init_images = imgs