diff --git a/toa.spec b/toa.spec
index 5413f3c..b098ffc 100644
--- a/toa.spec
+++ b/toa.spec
@@ -18,7 +18,7 @@ Patch0003: 0003-patch-for-5_10.patch
 
 Requires: kernel, findutils, gawk, bash
 
-BuildRequires: kernel-devel hwdata rpm
+BuildRequires: kernel-devel hwdata elfutils-devel gcc
 
 %description
 The TCP Option Address (TOA) module is a kernel module that obtains the source IPv4 address from the option section of a TCP header.