diff --git a/mir_eval/chord.py b/mir_eval/chord.py
index a5b2d64d..7cf0ba67 100644
--- a/mir_eval/chord.py
+++ b/mir_eval/chord.py
@@ -258,6 +258,7 @@ def scale_degree_to_bitmap(scale_degree, modulo=False, length=BITMAP_LENGTH):
     "min6": [1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0],
     "dim7": [1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0],
     "hdim7": [1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0],
+    "aug7": [1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0],
     "maj9": [1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1],
     "min9": [1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0],
     "9": [1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0],
diff --git a/tests/test_chord.py b/tests/test_chord.py
index e8db17fa..839b182f 100644
--- a/tests/test_chord.py
+++ b/tests/test_chord.py
@@ -180,6 +180,7 @@ def test_rotate_bitmaps_to_roots(bitmap, root, expected_bitmap):
         ("A:9/b3", 9, [1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0], 3, False, False),
         ("G:dim(4)/6", 7, [1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0], 9, False, False),
         ("A:9", 9, [1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0], 0, True, False),
+        ("Ab:aug7", 8, [1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0], 0, True, False),
     ],
 )
 def test_chord_encode(label, e_root, e_interval, e_bass, reduce, strict):