diff --git a/code/plot_s10_maps.py b/code/plot_s10_maps.py
index 4719d07..3370297 100644
--- a/code/plot_s10_maps.py
+++ b/code/plot_s10_maps.py
@@ -139,7 +139,7 @@ def plot_array_CMIP5(ds, historical=False):
         "cmap": plt.get_cmap("RdBu_r"),
     }
     if historical:
-        "Mean wind speed 1985-2005 [m/s]"
+        label = "Mean wind speed 1985-2005 [m/s]"
         plot_params = {
             "levels": linspace(2, 10, 9),
             "extend": "both",