diff --git a/scripts/solve_network.py b/scripts/solve_network.py
index 21cfea59..82b451dd 100644
--- a/scripts/solve_network.py
+++ b/scripts/solve_network.py
@@ -165,10 +165,10 @@ def add_pipe_retrofit_constraint(n):
     # according to hydrogen backbone strategy (April, 2020) p.15
     # https://gasforclimate2050.eu/wp-content/uploads/2020/07/2020_European-Hydrogen-Backbone_Report.pdf
     # 60% of original natural gas capacity could be used in cost-optimal case as H2 capacity
-    lhs = linexpr((1, link_p_nom.loc[h2_retrofitted_i].rename(index=lambda x: x.replace("H2 pipeline retrofitted", "Gas pipeline"))),
-                  (-0.6, link_p_nom.loc[gas_pipes_i]))
+    lhs = linexpr((1/0.6, link_p_nom.loc[h2_retrofitted_i].rename(index=lambda x: x.replace("H2 pipeline retrofitted", "Gas pipeline"))),
+                  (1, link_p_nom.loc[gas_pipes_i]))
 
-    define_constraints(n, lhs, "=", 0., 'Link', 'pipe_retrofit')
+    define_constraints(n, lhs, "=", pipe_capacity, 'Link', 'pipe_retrofit')
 
 
 def extra_functionality(n, snapshots):