diff --git a/OpenIPMI.spec b/OpenIPMI.spec
index 3a04cb7..2c15324 100644
--- a/OpenIPMI.spec
+++ b/OpenIPMI.spec
@@ -16,7 +16,6 @@ Source2:    openipmi-helper
 Source3:    ipmi.service
 Patch1:     0001-man.patch
 Patch2:     include-config-h-cmdlang.patch
-Patch4:     OpenIPMI-c99.patch
 Patch5:     OpenIPMI-py313compat.patch
 
 BuildRequires: make