diff --git a/setup.py b/setup.py
index c78d130f9..d12fef789 100644
--- a/setup.py
+++ b/setup.py
@@ -30,6 +30,7 @@
     # see the documentation for the full list of dependencies.
     provides=['lddecode'],
     requires=[
+        'matplotlib',
         'numba',
         'numpy',
         'scipy',