diff --git a/src/spicelib/devices/cap/capparam.c b/src/spicelib/devices/cap/capparam.c
index 003ebc2bb..f13342c3e 100644
--- a/src/spicelib/devices/cap/capparam.c
+++ b/src/spicelib/devices/cap/capparam.c
@@ -80,5 +80,20 @@ CAPparam(int param, IFvalue *value, GENinstance *inst, IFvalue *select)
     default:
         return(E_BADPARM);
     }
+
+#ifdef USE_CUSPICE
+    int status ;
+    CAPmodel *model ;
+
+    model = CAPmodPtr(here) ;
+    if (model->gen.GENinitCUDA) {
+        model->CAPparamCPU.CAPcapacArray[here->gen.GENcudaIndex] = here->CAPcapac;
+        model->CAPparamCPU.CAPmArray[here->gen.GENcudaIndex] = here->CAPm;
+        status = cuCAPtemp ((GENmodel *)model);
+        if (status != 0)
+            return E_NOMEM;
+    }
+#endif
+
     return(OK);
 }
diff --git a/src/spicelib/devices/cap/capsetup.c b/src/spicelib/devices/cap/capsetup.c
index e6cb971a4..41642a7fc 100644
--- a/src/spicelib/devices/cap/capsetup.c
+++ b/src/spicelib/devices/cap/capsetup.c
@@ -204,6 +204,8 @@ do { if((here->ptr = SMPmakeElt(matrix, here->first, here->second)) == NULL){\
         status = cuCAPsetup ((GENmodel *)model) ;
         if (status != 0)
             return (E_NOMEM) ;
+
+        model->gen.GENinitCUDA = 1 ;
     }
 #endif