diff --git a/scripts/redact-cast.py b/scripts/redact-cast.py
index cb10aba28..78b495c34 100755
--- a/scripts/redact-cast.py
+++ b/scripts/redact-cast.py
@@ -16,14 +16,19 @@ def main():
     input_file = sys.argv[1]
     output_file = sys.argv[2]
 
-    # Initialize pyte screen and stream
-    screen = pyte.Screen(80, 24)
-    stream = pyte.Stream(screen)
-
     # Read and parse the cast file
     with open(input_file, "r") as f:
         # First line is header
         header = f.readline().strip()
+        
+        # Parse header to extract terminal dimensions
+        header_data = json.loads(header)
+        width = header_data.get("width", 80)
+        height = header_data.get("height", 24)
+        
+        # Initialize pyte screen and stream with dimensions from header
+        screen = pyte.Screen(width, height)
+        stream = pyte.Stream(screen)
 
         # Read the events
         events = [json.loads(line) for line in f if line.strip()]