diff --git a/nifty/spaces/lm_space/lm_space.py b/nifty/spaces/lm_space/lm_space.py
index 9936452444c033368df1ffa7667c7573308d03ed..c1c046d917595b193518bcc8915ecc3039060a51 100644
--- a/nifty/spaces/lm_space/lm_space.py
+++ b/nifty/spaces/lm_space/lm_space.py
@@ -40,8 +40,11 @@ class LMSpace(Space):
         Parameters
         ----------
         lmax : int
-            Maximum :math:`\ell`-value up to which the spherical harmonics
-            coefficients are to be used.
+            The maximal :math:`l` value of any spherical harmonics
+            :math:`Y_{lm}` that is represented in this Space.
+        mmax : int
+            The maximal :math:`m` value of any spherical harmonic
+            :math:`Y_{lm}` that is represented in this Space.
 
         See Also
         --------