diff --git a/CHANGELOG.md b/CHANGELOG.md
index 00483bd59620f0f4e30a696a88d85b6fc544980f..120412860d29d5406b0930a941199fd412ed8d6a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@
 ### Changed
 ### Fixed
 - The histogram bin width was not computed optimally when some models were invalid. (David Corre & Médéric Boquien)
+- Missing import in the `m2005` module. (Médéric Boquien, reported by Dominika Wylezalek)
+
 ### Optimised
 - The estimation of the physical properties is made a bit faster when all the models are valid. (Médéric Boquien)
 
diff --git a/pcigale/sed_modules/m2005.py b/pcigale/sed_modules/m2005.py
index 7947504e54b0f419ac939e347634379537c9abf9..3daf68f8c5cb2980439b8c4dbe92092ddf73492c 100644
--- a/pcigale/sed_modules/m2005.py
+++ b/pcigale/sed_modules/m2005.py
@@ -13,6 +13,8 @@ This module implements the Maraston (2005) Single Stellar Populations.
 
 from collections import OrderedDict
 
+import numpy as np
+
 from . import SedModule
 from ..data import Database