diff --git a/FCCee/IDEA/compact/IDEA_o1_v03/IDEA_o1_v03.xml b/FCCee/IDEA/compact/IDEA_o1_v03/IDEA_o1_v03.xml
index a77b3676b..fbbdf9393 100644
--- a/FCCee/IDEA/compact/IDEA_o1_v03/IDEA_o1_v03.xml
+++ b/FCCee/IDEA/compact/IDEA_o1_v03/IDEA_o1_v03.xml
@@ -92,7 +92,7 @@
     <field name="GlobalSolenoid" type="solenoid"
            inner_field="SolenoidField"
            outer_field="-1.7*tesla"
-           zmax="Solenoid_Coil_half_length"
+           zmax="1.2 * Solenoid_Coil_half_length"
            outer_radius="Solenoid_Coil_radius">
     </field>
 
diff --git a/FCCee/IDEA/compact/IDEA_o1_v04/IDEA_o1_v04.xml b/FCCee/IDEA/compact/IDEA_o1_v04/IDEA_o1_v04.xml
index 5b4a80fda..92b2d86c8 100644
--- a/FCCee/IDEA/compact/IDEA_o1_v04/IDEA_o1_v04.xml
+++ b/FCCee/IDEA/compact/IDEA_o1_v04/IDEA_o1_v04.xml
@@ -92,7 +92,7 @@
     <field name="GlobalSolenoid" type="solenoid"
            inner_field="SolenoidField"
            outer_field="-1.7*tesla"
-           zmax="Solenoid_Coil_half_length"
+           zmax="1.2 * Solenoid_Coil_half_length"
            outer_radius="Solenoid_Coil_radius">
     </field>
 
diff --git a/FCCee/IDEA/compact/IDEA_o2_v01/IDEA_o2_v01.xml b/FCCee/IDEA/compact/IDEA_o2_v01/IDEA_o2_v01.xml
index 7e4170ff6..10c581f1a 100644
--- a/FCCee/IDEA/compact/IDEA_o2_v01/IDEA_o2_v01.xml
+++ b/FCCee/IDEA/compact/IDEA_o2_v01/IDEA_o2_v01.xml
@@ -82,7 +82,7 @@
     <field name="GlobalSolenoid" type="solenoid"
            inner_field="SolenoidField"
            outer_field="-1.7*tesla"
-           zmax="Solenoid_Coil_half_length"
+           zmax="1.2 * Solenoid_Coil_half_length"
            outer_radius="Solenoid_Coil_radius">
     </field>