diff --git a/bitmap.go b/bitmap.go
index 72296efab..117d020f7 100644
--- a/bitmap.go
+++ b/bitmap.go
@@ -14,8 +14,6 @@
 
 package pilosa
 
-// #cgo  CFLAGS:-mpopcnt
-
 import (
 	"encoding/json"
 	"sort"