diff --git a/rados/rados.go b/rados/rados.go
index b18fe08..17a1119 100644
--- a/rados/rados.go
+++ b/rados/rados.go
@@ -55,9 +55,9 @@ const (
 // Version returns the major, minor, and patch components of the version of
 // the RADOS library linked against.
 func Version() (int, int, int) {
-	var c_major, c_minor, c_patch C.int
-	C.rados_version(&c_major, &c_minor, &c_patch)
-	return int(c_major), int(c_minor), int(c_patch)
+	var cMajor, cMinor, cPatch C.int
+	C.rados_version(&cMajor, &cMinor, &cPatch)
+	return int(cMajor), int(cMinor), int(cPatch)
 }
 
 func makeConn() *Conn {