diff --git a/src/spicelib/devices/bsim4v5/b4v5mpar.c b/src/spicelib/devices/bsim4v5/b4v5mpar.c
index 0ebc1e962..47542ecbd 100644
--- a/src/spicelib/devices/bsim4v5/b4v5mpar.c
+++ b/src/spicelib/devices/bsim4v5/b4v5mpar.c
@@ -103,6 +103,8 @@ GENmodel *inMod)
             break;
 
         case  BSIM4v5_MOD_VERSION :
+            if (mod->BSIM4v5version)
+                free(mod->BSIM4v5version);
             mod->BSIM4v5version = value->sValue;
             mod->BSIM4v5versionGiven = TRUE;
             break;
diff --git a/src/spicelib/devices/vsrc/vsrcask.c b/src/spicelib/devices/vsrc/vsrcask.c
index 54aa946cc..0ef72402d 100644
--- a/src/spicelib/devices/vsrc/vsrcask.c
+++ b/src/spicelib/devices/vsrc/vsrcask.c
@@ -87,6 +87,7 @@ VSRCask(CKTcircuit *ckt, GENinstance *inst, int which, IFvalue *value, IFvalue *
             return (OK);
         case VSRC_CURRENT:
             if (ckt->CKTcurrentAnalysis & DOING_AC) {
+                FREE(errMsg);
                 errMsg = TMALLOC(char, strlen(msg) + 1);
                 errRtn = "VSRCask";
                 strcpy(errMsg,msg);
@@ -100,6 +101,7 @@ VSRCask(CKTcircuit *ckt, GENinstance *inst, int which, IFvalue *value, IFvalue *
             return(OK);
         case VSRC_POWER:
             if (ckt->CKTcurrentAnalysis & DOING_AC) {
+                FREE(errMsg);
                 errMsg = TMALLOC(char, strlen(msg) + 1);
                 errRtn = "VSRCask";
                 strcpy(errMsg,msg);