diff --git a/vvp/vvp_net.cc b/vvp/vvp_net.cc
index afa2d2fcc..1dcc84863 100644
--- a/vvp/vvp_net.cc
+++ b/vvp/vvp_net.cc
@@ -2642,6 +2642,7 @@ vvp_vector8_t::vvp_vector8_t(const vvp_vector4_t&that,
 	    return;
 
       if (size_ <= sizeof val_) {
+	    ptr_ = 0; // Prefill all val_ bytes
 	    for (unsigned idx = 0 ; idx < size_ ; idx += 1)
 		  val_[idx] = vvp_scalar_t(that.value(idx),str0, str1).raw();
       } else {
diff --git a/vvp/vvp_net.h b/vvp/vvp_net.h
index f12e10f81..639bd214d 100644
--- a/vvp/vvp_net.h
+++ b/vvp/vvp_net.h
@@ -873,6 +873,7 @@ inline vvp_vector8_t::vvp_vector8_t(unsigned size__)
 : size_(size__)
 {
       if (size_ <= sizeof val_) {
+	      // This should set all the bytes of val_ to 0
 	    ptr_ = 0;
       } else {
 	    ptr_ = new unsigned char[size_];
@@ -914,6 +915,7 @@ inline bool vvp_vector8_t::eeq(const vvp_vector8_t&that) const
 	    return true;
 
       if (size_ <= sizeof val_)
+	      // This is equivilent to memcmp(val_, that.val_, sizeof val_)==0
 	    return ptr_ == that.ptr_;
       else
 	    return memcmp(ptr_, that.ptr_, size_) == 0;