diff --git a/Lib/fontTools/misc/fixedTools.py b/Lib/fontTools/misc/fixedTools.py
index e0ed4436c..036ef1056 100644
--- a/Lib/fontTools/misc/fixedTools.py
+++ b/Lib/fontTools/misc/fixedTools.py
@@ -21,6 +21,11 @@ __all__ = [
 ]
 
 
+# the max value that can still fit in an F2Dot14:
+# 1.99993896484375
+MAX_F2DOT14 = 0x7FFF / (1 << 14)
+
+
 def otRound(value):
 	"""Round float value to nearest integer towards +Infinity.
 	For fractional values of 0.5 and higher, take the next higher integer;
diff --git a/Lib/fontTools/pens/ttGlyphPen.py b/Lib/fontTools/pens/ttGlyphPen.py
index 1f0830ef3..3996e3cd8 100644
--- a/Lib/fontTools/pens/ttGlyphPen.py
+++ b/Lib/fontTools/pens/ttGlyphPen.py
@@ -1,5 +1,6 @@
 from fontTools.misc.py23 import *
 from array import array
+from fontTools.misc.fixedTools import MAX_F2DOT14
 from fontTools.pens.basePen import LoggingPen
 from fontTools.pens.transformPen import TransformPen
 from fontTools.ttLib.tables import ttProgram
@@ -11,11 +12,6 @@ from fontTools.ttLib.tables._g_l_y_f import GlyphCoordinates
 __all__ = ["TTGlyphPen"]
 
 
-# the max value that can still fit in an F2Dot14:
-# 1.99993896484375
-MAX_F2DOT14 = 0x7FFF / (1 << 14)
-
-
 class TTGlyphPen(LoggingPen):
     """Pen used for drawing to a TrueType glyph.