diff --git a/src/V3AstNodes.h b/src/V3AstNodes.h
index 83b488311..81f1413b7 100644
--- a/src/V3AstNodes.h
+++ b/src/V3AstNodes.h
@@ -2882,10 +2882,11 @@ struct AstCCast : public AstNodeUniop {
 private:
     int		m_size;
 public:
-    AstCCast(FileLine* fl, AstNode* lhsp, int setwidth) : AstNodeUniop(fl, lhsp) {
+    AstCCast(FileLine* fl, AstNode* lhsp, int setwidth, int minwidth=-1) : AstNodeUniop(fl, lhsp) {
 	m_size=setwidth;
 	if (setwidth) {
-	    dtypeSetLogicSized(setwidth,setwidth,AstNumeric::UNSIGNED);
+	    if (minwidth==-1) minwidth=setwidth;
+	    dtypeSetLogicSized(setwidth,minwidth,AstNumeric::UNSIGNED);
 	}
     }
     AstCCast(FileLine* fl, AstNode* lhsp, AstNode* typeFromp) : AstNodeUniop(fl, lhsp) {
diff --git a/src/V3Cast.cpp b/src/V3Cast.cpp
index 021409bd5..e6aa583cb 100644
--- a/src/V3Cast.cpp
+++ b/src/V3Cast.cpp
@@ -77,8 +77,7 @@ private:
 	AstNRelinker relinkHandle;
 	nodep->unlinkFrBack(&relinkHandle);
 	//
-	AstCCast* castp = new AstCCast (nodep->fileline(), nodep, needsize);
-	castp->width(needsize, nodep->widthMin());
+	AstCCast* castp = new AstCCast (nodep->fileline(), nodep, needsize, nodep->widthMin());
 	relinkHandle.relink(castp);
 	//if (debug()>8) castp->dumpTree(cout,"-castins: ");
 	//