diff --git a/d2compiler/compile.go b/d2compiler/compile.go
index 4718636c5..0825166d6 100644
--- a/d2compiler/compile.go
+++ b/d2compiler/compile.go
@@ -533,8 +533,8 @@ func (c *compiler) compileReserved(attrs *d2graph.Attributes, f *d2ir.Field) {
 	}
 
 	if attrs.Link != nil && attrs.Tooltip != nil {
-		_, err := url.ParseRequestURI(attrs.Tooltip.Value)
-		if err == nil {
+		u, err := url.ParseRequestURI(attrs.Tooltip.Value)
+		if err == nil && u.Host != "" {
 			c.errorf(scalar, "Tooltip cannot be set to URL when link is also set (for security)")
 		}
 	}