diff --git a/src/spicelib/parser/ptfuncs.c b/src/spicelib/parser/ptfuncs.c
index 00e1e63cd..92793f285 100644
--- a/src/spicelib/parser/ptfuncs.c
+++ b/src/spicelib/parser/ptfuncs.c
@@ -70,7 +70,9 @@ PTpower(double arg1, double arg2)
 {
     double res;
     if (newcompat.lt) {
-        if(arg1 >= 0)
+        if (arg1 == 0)
+            res = 0;
+        else if(arg1 > 0)
             res = pow(arg1, arg2);
         else {
             /* If arg2 is quasi an integer, round it to have pow not fail