diff --git a/Lib/fontTools/pens/ttGlyphPen.py b/Lib/fontTools/pens/ttGlyphPen.py
index f828502ee..11b9584b2 100644
--- a/Lib/fontTools/pens/ttGlyphPen.py
+++ b/Lib/fontTools/pens/ttGlyphPen.py
@@ -170,9 +170,14 @@ class _TTGlyphBasePen:
             components.append(component)
         return components
 
-    def glyph(self, componentFlags: int = 0x4, preserveTopology=True) -> Glyph:
+    def glyph(self, componentFlags: int = 0x04, dropImpliedOnCurves=False) -> Glyph:
         """
         Returns a :py:class:`~._g_l_y_f.Glyph` object representing the glyph.
+
+        Args:
+            componentFlags: Flags to use for component glyphs. (default: 0x04)
+
+            dropImpliedOnCurves: Whether to remove implied-oncurve points. (default: False)
         """
         if not self._isClosed():
             raise PenError("Didn't close last contour.")
@@ -184,7 +189,7 @@ class _TTGlyphBasePen:
         glyph.flags = array("B", self.types)
 
         glyph.coordinates.toInt()
-        if not preserveTopology:
+        if dropImpliedOnCurves:
             drop_implied_oncurves(glyph)
 
         self.init()
diff --git a/Tests/pens/ttGlyphPen_test.py b/Tests/pens/ttGlyphPen_test.py
index 382602f02..0d7167073 100644
--- a/Tests/pens/ttGlyphPen_test.py
+++ b/Tests/pens/ttGlyphPen_test.py
@@ -639,10 +639,10 @@ class CubicGlyfTest:
                 ]
 
     @pytest.mark.parametrize(
-        "preserveTopology, segment_pen_commands, point_pen_commands, expected_coordinates, expected_flags, expected_endPts",
+        "dropImpliedOnCurves, segment_pen_commands, point_pen_commands, expected_coordinates, expected_flags, expected_endPts",
         [
             (  # Two curves that do NOT merge; request merging
-                False,
+                True,
                 [
                     ("moveTo", ((0, 0),)),
                     ("curveTo", ((0, 1), (1, 2), (2, 2))),
@@ -665,7 +665,7 @@ class CubicGlyfTest:
                 [6],
             ),
             (  # Two curves that merge; request merging
-                False,
+                True,
                 [
                     ("moveTo", ((0, 0),)),
                     ("curveTo", ((0, 1), (1, 2), (2, 2))),
@@ -688,7 +688,7 @@ class CubicGlyfTest:
                 [5],
             ),
             (  # Two curves that merge; request NOT merging
-                True,
+                False,
                 [
                     ("moveTo", ((0, 0),)),
                     ("curveTo", ((0, 1), (1, 2), (2, 2))),
@@ -711,7 +711,7 @@ class CubicGlyfTest:
                 [6],
             ),
             (  # Two (duplicate) contours
-                False,
+                True,
                 [
                     ("moveTo", ((0, 0),)),
                     ("curveTo", ((0, 1), (1, 2), (2, 2))),
@@ -776,7 +776,7 @@ class CubicGlyfTest:
     )
     def test_cubic_topology(
         self,
-        preserveTopology,
+        dropImpliedOnCurves,
         segment_pen_commands,
         point_pen_commands,
         expected_coordinates,
@@ -795,7 +795,7 @@ class CubicGlyfTest:
 
         for pen in (spen, ppen):
 
-            glyph = pen.glyph(preserveTopology=preserveTopology)
+            glyph = pen.glyph(dropImpliedOnCurves=dropImpliedOnCurves)
 
             assert list(glyph.coordinates) == expected_coordinates
             assert list(glyph.flags) == expected_flags