diff --git a/aider_gitea/__main__.py b/aider_gitea/__main__.py
index ddf8197..be2f53b 100644
--- a/aider_gitea/__main__.py
+++ b/aider_gitea/__main__.py
@@ -211,9 +211,10 @@ def has_commits_on_branch(cwd: Path, base_branch: str, current_branch: str) -> b
         return False
 
 
-def run_cmd(cmd: list[str], cwd: Path | None = None, check=True) -> None:
-    print(cmd)
-    subprocess.run(cmd, check=check, cwd=cwd)
+def run_cmd(cmd: list[str], cwd: Path | None = None, check=True) -> bool:
+    """Returns true if the command succeeded."""
+    result = subprocess.run(cmd, check=check, cwd=cwd)
+    return result.returncode == 0
 
 
 def solve_issue_in_repository(
@@ -236,7 +237,10 @@ def solve_issue_in_repository(
     run_cmd(['git', 'checkout', '-b', branch_name], tmpdirname)
 
     # Run aider
-    run_cmd(create_aider_command(f'# {issue_title}\n{issue_description}'), tmpdirname)
+    succeeded = run_cmd(create_aider_command(f'# {issue_title}\n{issue_description}'), tmpdirname, check=False)
+    if not succeeded:
+        logger.error('Aider invocation failed for issue #%s', issue_number)
+        return False
 
     # Auto-fix standard code quality stuff
     run_cmd(['bash', '-c', RUFF_FORMAT_AND_AUTO_FIX], tmpdirname, check=False)