diff --git a/elaborate.cc b/elaborate.cc
index a974bf988..61e224d00 100644
--- a/elaborate.cc
+++ b/elaborate.cc
@@ -2453,7 +2453,7 @@ NetProc* PCallTask::elaborate_sys(Design*des, NetScope*scope) const
 	// to annotate, and the user is intending to turn the behavior
 	// off anyhow, so replace the system task invocation with a no-op.
       if (gn_specify_blocks_flag == false
-	  & peek_tail_name(path_) == "$sdf_annotate") {
+	 && peek_tail_name(path_) == "$sdf_annotate") {
 
 	    NetBlock*noop = new NetBlock(NetBlock::SEQU, scope);
 	    noop->set_line(*this);
diff --git a/vpi/vcd_priv.c b/vpi/vcd_priv.c
index 79fd556ff..4418dbb49 100644
--- a/vpi/vcd_priv.c
+++ b/vpi/vcd_priv.c
@@ -207,7 +207,7 @@ void nexus_ident_delete()
 
       if (vcd_ids == 0) return;
 
-      for (idx = 0 ; idx < 256; idx = idx += 1) {
+      for (idx = 0 ; idx < 256; idx++) {
 	    struct vcd_id_s *cur, *tmp;
 	    for (cur = vcd_ids[idx]; cur; cur = tmp) {
 		  tmp = cur->next;