diff --git a/vlib/v/builder/cc.v b/vlib/v/builder/cc.v
index 532ea273c4..a1b092429e 100644
--- a/vlib/v/builder/cc.v
+++ b/vlib/v/builder/cc.v
@@ -227,7 +227,7 @@ fn (mut v Builder) setup_ccompiler_options(ccompiler string) {
 	}
 
 	// Add -fwrapv to handle UB overflows
-	if ccoptions.cc in [.gcc, .clang, .tcc] && v.pref.os in [.macos, .linux, .windows] {
+	if ccoptions.cc in [.gcc, .clang, .tcc] && v.pref.os in [.macos, .linux, .openbsd, .windows] {
 		ccoptions.args << '-fwrapv'
 	}