diff --git a/Lib/fontTools/ttLib/tables/otTables.py b/Lib/fontTools/ttLib/tables/otTables.py
index f6009cbc5..3a929cabc 100644
--- a/Lib/fontTools/ttLib/tables/otTables.py
+++ b/Lib/fontTools/ttLib/tables/otTables.py
@@ -220,14 +220,16 @@ class VarTransform:
 
 
 class VarComponentFlags(IntFlag):
-    INDICES_SIZE = 0x03 # Currently has to be the first two bits; search for indicesSize
+    INDICES_SIZE = (
+        0x03  # Currently has to be the first two bits; search for indicesSize
+    )
     GID_IS_24BIT = 0x04
     USE_MY_METRICS = 0x8
     HAVE_LOCATION = 0x10
     HAVE_TRANSFORM = 0x20
     RESET_UNSPECIFIED_AXES = 0x40
     RETAIN_FLAGS = RESET_UNSPECIFIED_AXES | USE_MY_METRICS
-    RESERVED = 0x40 | 0x80
+    RESERVED = 0x80
 
 
 class VarComponent:
diff --git a/Lib/fontTools/ttLib/ttGlyphSet.py b/Lib/fontTools/ttLib/ttGlyphSet.py
index 0ea895b9b..001944f9e 100644
--- a/Lib/fontTools/ttLib/ttGlyphSet.py
+++ b/Lib/fontTools/ttLib/ttGlyphSet.py
@@ -307,7 +307,9 @@ class _TTGlyphVARC(_TTGlyph):
                 # Apply variations
                 varIdx = NO_VARIATION_INDEX
                 if comp.AxisValuesIndex < len(varc.AxisValuesList.VarIndices.mapping):
-                    varIdx = varc.AxisValuesList.VarIndices.mapping[comp.AxisValuesIndex]
+                    varIdx = varc.AxisValuesList.VarIndices.mapping[
+                        comp.AxisValuesIndex
+                    ]
                 if varIdx != NO_VARIATION_INDEX:
                     axisValues = (
                         axisValues + instancer[varIdx]