diff --git a/build/fbcode_builder/getdeps/expr.py b/build/fbcode_builder/getdeps/expr.py
index 0f51521d6..3b3d2d13d 100644
--- a/build/fbcode_builder/getdeps/expr.py
+++ b/build/fbcode_builder/getdeps/expr.py
@@ -151,8 +151,10 @@ def top(self):
 
     def ident(self) -> str:
         ident = self.lex.get_token()
+        # pyre-fixme[6]: For 2nd argument expected `str` but got `Optional[str]`.
         if not re.match("[a-zA-Z]+", ident):
             raise Exception("expected identifier found %s" % ident)
+        # pyre-fixme[7]: Expected `str` but got `Optional[str]`.
         return ident
 
     def parse_not(self) -> NotExpr:
diff --git a/build/fbcode_builder/getdeps/platform.py b/build/fbcode_builder/getdeps/platform.py
index 1e021d992..5e4acdc44 100644
--- a/build/fbcode_builder/getdeps/platform.py
+++ b/build/fbcode_builder/getdeps/platform.py
@@ -216,7 +216,6 @@ def __init__(self, ostype=None, distro=None, distrovers=None) -> None:
                 ostype = "darwin"
             elif is_windows():
                 ostype = "windows"
-                # pyre-fixme[16]: Module `sys` has no attribute `getwindowsversion`.
                 distrovers = str(sys.getwindowsversion().major)
             elif sys.platform.startswith("freebsd"):
                 ostype = "freebsd"
diff --git a/build/fbcode_builder/getdeps/py_wheel_builder.py b/build/fbcode_builder/getdeps/py_wheel_builder.py
index 335d74afd..7db5f2cb0 100644
--- a/build/fbcode_builder/getdeps/py_wheel_builder.py
+++ b/build/fbcode_builder/getdeps/py_wheel_builder.py
@@ -95,13 +95,14 @@
 # something like the following pip3 command:
 #   pip3 --isolated install --no-cache-dir --no-index --system \
 #       --target <install_dir> <wheel_file>
-# pyre-fixme[13] fields initialized in _build
 class PythonWheelBuilder(BuilderBase):
     """This Builder can take Python wheel archives and install them as python libraries
     that can be used by add_fb_python_library()/add_fb_python_executable() CMake rules.
     """
 
+    # pyre-fixme[13]: Attribute `dist_info_dir` is never initialized.
     dist_info_dir: str
+    # pyre-fixme[13]: Attribute `template_format_dict` is never initialized.
     template_format_dict: Dict[str, str]
 
     def _build(self, reconfigure: bool) -> None: