diff --git a/root_unix.go b/root_unix.go
index 095beec..1b9aeb0 100644
--- a/root_unix.go
+++ b/root_unix.go
@@ -14,6 +14,7 @@ var certFiles = []string{
 	"/etc/ssl/certs/ca-certificates.crt", // Linux etc
 	"/etc/pki/tls/certs/ca-bundle.crt",   // Fedora/RHEL
 	"/etc/ssl/ca-bundle.pem",             // OpenSUSE
+	"/etc/ssl/cert.pem",                  // OpenBSD
 }
 
 func initDefaultRoots() {