diff --git a/src/spicelib/devices/vdmos/vdmos.c b/src/spicelib/devices/vdmos/vdmos.c
index a7b9b23c0..76d68f391 100644
--- a/src/spicelib/devices/vdmos/vdmos.c
+++ b/src/spicelib/devices/vdmos/vdmos.c
@@ -107,7 +107,7 @@ IFparm VDMOSmPTable[] = { /* model parameters */
  /* body diode capacitance (e.g. source-drain capacitance) */
  IOP("fc",    VDMOS_MOD_FC,    IF_REAL,   "Body diode coefficient for forward-bias depletion capacitance formula"),
  IOPA("cjo",  VDMOS_MOD_CJ,    IF_REAL,   "Zero-bias body diode junction capacitance"),
- IOP("mj",    VDMOS_MOD_MJ,    IF_REAL,   "Body diode grading coefficient"),
+ IOP("m",     VDMOS_MOD_MJ,    IF_REAL,   "Body diode grading coefficient"),
 
  /* gate-source and gate-drain capacitances */
  IOPA("cgdmin", VDMOS_MOD_CGDMIN, IF_REAL, "Minimum non-linear G-D capacitance"),