diff --git a/xschem_library/devices/isource.sym b/xschem_library/devices/isource.sym
index f189867e..a0dec4dd 100644
--- a/xschem_library/devices/isource.sym
+++ b/xschem_library/devices/isource.sym
@@ -22,6 +22,8 @@ v {xschem version=3.4.5 file_version=1.2
 G {}
 K {type=isource
 format="@name @pinlist @value"
+spectre_format="@name ( @pinlist ) isource @value"
+spectre_device_model="model isource isource"
 template="name=I0 value=1m"}
 V {}
 S {}