diff --git a/glimix_core/glmm/glmm.py b/glimix_core/glmm/glmm.py
index 12de94ee..9ba11472 100644
--- a/glimix_core/glmm/glmm.py
+++ b/glimix_core/glmm/glmm.py
@@ -177,7 +177,7 @@ def delta(self, v):
 
     @property
     def beta(self):
-        return self.variables().get('beta').value
+        return asarray(self.variables().get('beta').value, float)
 
     @beta.setter
     def beta(self, v):
diff --git a/setup.py b/setup.py
index 9d794c72..15cadafb 100644
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@ def setup_package():
 
     metadata = dict(
         name='glimix-core',
-        version='1.2.13',
+        version='1.2.14',
         maintainer="Limix Developers",
         maintainer_email="horta@ebi.ac.uk",
         license="MIT",