diff --git a/frappe/utils/error.py b/frappe/utils/error.py
index 2c66bd85e4..9269d6b3cb 100644
--- a/frappe/utils/error.py
+++ b/frappe/utils/error.py
@@ -157,7 +157,7 @@ def collect_error_snapshots():
 			fullpath = os.path.join(path, fname)
 
 			try:
-				with open(fullpath, 'rb') as filedata:
+				with open(fullpath, 'r') as filedata:
 					data = json.load(filedata)
 
 			except ValueError: