diff --git a/src/spicelib/devices/res/res.c b/src/spicelib/devices/res/res.c
index e231dd5fb..8f74ef82d 100644
--- a/src/spicelib/devices/res/res.c
+++ b/src/spicelib/devices/res/res.c
@@ -41,13 +41,13 @@ IFparm RESpTable[] = { /* parameters */
 IFparm RESmPTable[] = { /* model parameters */
  IOPQ(  "rsh",    RES_MOD_RSH,      IF_REAL,"Sheet resistance"),
  IOPZ(  "narrow", RES_MOD_NARROW,   IF_REAL,"Narrowing of resistor"),
- IOPZ(  "dw",     RES_MOD_NARROW,   IF_REAL,"Narrowing of resistor"),
+ IOPR(  "dw",     RES_MOD_NARROW,   IF_REAL,"Narrowing of resistor"),
  IOPZ(  "short",  RES_MOD_SHORT,    IF_REAL,"Shortening of resistor"),
- IOPZ(  "dlr",    RES_MOD_SHORT,    IF_REAL,"Shortening of resistor"),
+ IOPR(  "dlr",    RES_MOD_SHORT,    IF_REAL,"Shortening of resistor"),
  IOPQ(  "tc1",    RES_MOD_TC1,      IF_REAL,"First order temp. coefficient"),
  IOPQO( "tc2",    RES_MOD_TC2,      IF_REAL,"Second order temp. coefficient"),
  IOPX(  "defw",   RES_MOD_DEFWIDTH, IF_REAL,"Default device width"),
- IOPX(  "w",      RES_MOD_DEFWIDTH, IF_REAL,"Default device width"),
+ IOPR(  "w",      RES_MOD_DEFWIDTH, IF_REAL,"Default device width"),
  IOPQ(  "kf",     RES_MOD_KF,       IF_REAL,"Flicker noise coefficient"),
  IOPQ(  "af",     RES_MOD_AF,       IF_REAL,"Flicker noise exponent"), 
  IOPXU( "tnom",   RES_MOD_TNOM,     IF_REAL,"Parameter measurement temperature"),