diff --git a/process/data_structure/pfcoil_variables.py b/process/data_structure/pfcoil_variables.py
index 492343e6cb..a0136c40ca 100644
--- a/process/data_structure/pfcoil_variables.py
+++ b/process/data_structure/pfcoil_variables.py
@@ -177,7 +177,7 @@
 """F-value for `constraint equation 51`"""
 
 
-i_pf_location: list[float] = None
+i_pf_location: list[int] = None
 """Switch for location of PF coil group i:
 - =1 PF coil on top of central solenoid (flux ramp only)
 - =2 PF coil on top of TF coil (flux ramp only)
@@ -279,8 +279,7 @@
 """number of PF circuits (including central solenoid and plasma)"""
 
 
-n_pf_coils_in_group: list[float] = None
-
+n_pf_coils_in_group: list[int] = None
 """number of PF coils in group j"""