diff --git a/config/test/config.electricity.yaml b/config/test/config.electricity.yaml
index 6798e38c..06a86241 100644
--- a/config/test/config.electricity.yaml
+++ b/config/test/config.electricity.yaml
@@ -60,6 +60,11 @@ renewable:
 clustering:
   exclude_carriers: ["OCGT", "offwind-ac", "coal"]
 
+lines:
+  dynamic_line_rating:
+    activate: true
+    max_line_rating: 1.3
+
 
 solving:
   solver:
diff --git a/config/test/config.myopic.yaml b/config/test/config.myopic.yaml
index efa03136..df0db708 100644
--- a/config/test/config.myopic.yaml
+++ b/config/test/config.myopic.yaml
@@ -54,6 +54,11 @@ renewable:
   solar:
     cutout: be-03-2013-era5
 
+lines:
+  dynamic_line_rating:
+    activate: true
+    max_line_rating: 1.3
+
 industry:
   St_primary_fraction:
     2030: 0.6
diff --git a/config/test/config.overnight.yaml b/config/test/config.overnight.yaml
index fb468ded..824339c7 100644
--- a/config/test/config.overnight.yaml
+++ b/config/test/config.overnight.yaml
@@ -51,6 +51,11 @@ renewable:
   solar:
     cutout: be-03-2013-era5
 
+lines:
+  dynamic_line_rating:
+    activate: true
+    max_line_rating: 1.3
+
 sector:
   gas_network: true
   H2_retrofit: true