diff --git a/examples/vwebp.c b/examples/vwebp.c
index 8b562a5e..90e98d29 100644
--- a/examples/vwebp.c
+++ b/examples/vwebp.c
@@ -127,12 +127,12 @@ static void HandleDisplay(void) {
   if (kParams.print_info) {
     char tmp[32];
 
-    glColor4f(0.0, 0.0, 0.0, 0.0);
+    glColor4f(0.0, 0.0, 0.0, 1.0);
     glRasterPos2f(-0.95f, 0.90f);
     PrintString(kParams.file_name);
 
     snprintf(tmp, sizeof(tmp), "Dimension:%d x %d", pic->width, pic->height);
-    glColor4f(0.0, 0.0, 0.0, 0.0);
+    glColor4f(0.0, 0.0, 0.0, 1.0);
     glRasterPos2f(-0.95f, 0.80f);
     PrintString(tmp);
   }