diff --git a/ra_aid/proc/interactive.py b/ra_aid/proc/interactive.py
index 4d9f8b2..8213057 100644
--- a/ra_aid/proc/interactive.py
+++ b/ra_aid/proc/interactive.py
@@ -69,7 +69,7 @@ def run_interactive_command(cmd: List[str]) -> Tuple[bytes, int]:
     except (AttributeError, io.UnsupportedOperation):
         stdin_fd = None
 
-    # Set up environment variables for the subprocess
+    # Set up environment variables for the subprocess using detected terminal size
     env = os.environ.copy()
     env.update({
         'DEBIAN_FRONTEND': 'noninteractive',
@@ -78,7 +78,8 @@ def run_interactive_command(cmd: List[str]) -> Tuple[bytes, int]:
         'CI': 'true',
         'LANG': 'C.UTF-8',
         'LC_ALL': 'C.UTF-8',
-        'COLUMNS': '120',
+        'COLUMNS': str(cols),
+        'LINES': str(rows),
         'FORCE_COLOR': '1',
         'GIT_TERMINAL_PROMPT': '0',
         'PYTHONDONTWRITEBYTECODE': '1',