diff --git a/src/V3Ast.h b/src/V3Ast.h
index 0f1a8556d..c7267d280 100644
--- a/src/V3Ast.h
+++ b/src/V3Ast.h
@@ -1287,7 +1287,7 @@ public:
     static AstNode* addNextNull(AstNode* nodep, AstNode* newp);	// Returns nodep, adds newp (maybe NULL) to end of nodep's list
     inline AstNode* addNext(AstNode* newp) { return addNext(this, newp); }
     inline AstNode* addNextNull(AstNode* newp) { return addNextNull(this, newp); }
-    void	addNextHere(AstNode* newp);	// Adds after speced node
+    void addNextHere(AstNode* newp);  // Insert newp at this->nextp
     void	addPrev(AstNode* newp) { replaceWith(newp); newp->addNext(this); }
     void	addHereThisAsNext(AstNode* newp); // Adds at old place of this, this becomes next
     void	replaceWith(AstNode* newp);	// Replace current node in tree with new node
diff --git a/src/V3Options.cpp b/src/V3Options.cpp
index cc1f3aae9..ef3b7d41a 100644
--- a/src/V3Options.cpp
+++ b/src/V3Options.cpp
@@ -1284,7 +1284,7 @@ V3Options::V3Options() {
 
     VName::maxLength(128); // Linux filename limits 256; leave half for prefix
 
-    optimize(true);
+    optimize(1);
     // Default +libext+
     addLibExtV("");  // So include "filename.v" will find the same file
     addLibExtV(".v");