diff --git a/scripts/build_industry_sector_ratios_intermediate.py b/scripts/build_industry_sector_ratios_intermediate.py
index 42e8a7dc..0fbaa567 100644
--- a/scripts/build_industry_sector_ratios_intermediate.py
+++ b/scripts/build_industry_sector_ratios_intermediate.py
@@ -79,6 +79,7 @@ with the following carriers are considered:
 Unit of the output file is MWh/t.
 """
 
+import numpy as np
 import pandas as pd
 from prepare_sector_network import get
 
@@ -104,7 +105,7 @@ def build_industry_sector_ratios_intermediate():
         snakemake.input.industry_sector_ratios, index_col=0
     )
 
-    today_sector_ratios = demand.div(production, axis=1)
+    today_sector_ratios = demand.div(production, axis=1).replace([np.inf, -np.inf], 0)
 
     today_sector_ratios.dropna(how="all", axis=1, inplace=True)