diff --git a/src/nv.d3.css b/src/nv.d3.css
index aa10861..99f25db 100644
--- a/src/nv.d3.css
+++ b/src/nv.d3.css
@@ -512,7 +512,7 @@ svg .title {
 }
 
 .nvd3.nv-sparklineplus .nv-hoverValue line {
-  stroke: #f44;
+  stroke: #333;
   stroke-width: 1.5px;
  }