diff --git a/.github/scripts/commit_prefix_check.py b/.github/scripts/commit_prefix_check.py
index fffba6d87ae..b8c14c2e3c5 100644
--- a/.github/scripts/commit_prefix_check.py
+++ b/.github/scripts/commit_prefix_check.py
@@ -62,11 +62,14 @@ def infer_prefix_from_paths(paths):
                 component_prefixes.add(f"{parts[1]}:")
 
         # ----- src/ → flb_xxx.* → xxx: OR src/<dir>/ → <dir>: -----
+        # ----- src/fluent-bit.c → bin: -----
         if p.startswith("src/"):
             filename = os.path.basename(p)
             if filename.startswith("flb_"):
                 core = filename[4:].split(".")[0]
                 component_prefixes.add(f"{core}:")
+            elif filename == "fluent-bit.c":
+                component_prefixes.add("bin:")
             else:
                 parts = p.split("/")
                 if len(parts) > 1:
diff --git a/.github/scripts/tests/test_commit_lint.py b/.github/scripts/tests/test_commit_lint.py
index 575a7f814b2..ec6b9982a03 100644
--- a/.github/scripts/tests/test_commit_lint.py
+++ b/.github/scripts/tests/test_commit_lint.py
@@ -66,6 +66,16 @@ def test_infer_multiple_prefixes():
     # At least one real component touched → build is optional
     assert build_optional is True
 
+def test_infer_prefix_fluent_bit_entrypoint():
+    """
+    Test that src/fluent-bit.c infers bin: prefix.
+
+    fluent-bit.c is the main entry point of the fluent-bit binary,
+    so commits touching this file should allow the 'bin:' prefix.
+    """
+    prefixes, build_optional = infer_prefix_from_paths(["src/fluent-bit.c"])
+    assert prefixes == {"bin:"}
+    assert build_optional is True
 
 # -----------------------------------------------------------
 # Tests: Bad Squash Detection
@@ -158,6 +168,21 @@ def test_valid_commit_multiple_signoffs_allowed():
     assert ok is True
 
 
+def test_valid_commit_bin_prefix_for_fluent_bit():
+    """
+    Test that commits modifying src/fluent-bit.c allow the 'bin:' prefix.
+
+    The fluent-bit.c file represents the binary entry point, so using
+    'bin:' as the commit prefix should be valid.
+    """
+    commit = make_commit(
+        "bin: adjust startup behavior\n\nSigned-off-by: User",
+        ["src/fluent-bit.c"]
+    )
+    ok, _ = validate_commit(commit)
+    assert ok is True
+
+
 # -----------------------------------------------------------
 # Tests: validate_commit ERROR CASES
 # -----------------------------------------------------------