diff --git a/aider/coder.py b/aider/coder.py
index e98ecd2b9..08385398b 100755
--- a/aider/coder.py
+++ b/aider/coder.py
@@ -31,7 +31,7 @@ class Coder:
     last_modified = 0
     repo = None
 
-    def __init__(self, main_model, files, pretty, history_file):
+    def __init__(self, main_model, files, pretty, history_file, show_diffs):
         self.history_file = history_file
 
         if pretty:
@@ -62,7 +62,7 @@ class Coder:
             )
 
         self.pretty = pretty
-
+        self.show_diffs = show_diffs
     def set_repo(self):
         repo_paths = []
         for fname in self.fnames:
@@ -372,8 +372,8 @@ class Coder:
             self.last_modified = self.get_last_modified()
             return
 
-        self.console.print(Text(diffs))
-
+        if self.show_diffs:
+            self.console.print(Text(diffs))
         diffs = "# Diffs:\n" + diffs
 
         # for fname in dirty_fnames:
diff --git a/aider/main.py b/aider/main.py
index 5449eaf6a..0d1d3afbf 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -53,12 +53,17 @@ def main():
         help=f"On launch, commit dirty files w/o confirmation (default: False, ${env_prefix}COMMIT_DIRTY)",  # noqa: E501
         default=bool(int(os.environ.get(f"{env_prefix}COMMIT_DIRTY", 0))),
     )
+    parser.add_argument(
+        "--show-diffs",
+        action="store_true",
+        help=f"Show diffs when committing changes (default: False, ${env_prefix}SHOW_DIFFS)",
+        default=bool(int(os.environ.get(f"{env_prefix}SHOW_DIFFS", 0))),
+    )
     args = parser.parse_args()
-
     fnames = args.files
     pretty = args.pretty
 
-    coder = Coder(args.model, fnames, pretty, args.history_file)
+    coder = Coder(args.model, fnames, pretty, args.history_file, args.show_diffs)
     coder.commit(ask=not args.commit_dirty, prefix="WIP: ")
 
     if args.apply: