diff --git a/opus_nonshared.go b/opus_nonshared.go
index 46e5b2a..a3b1c1e 100644
--- a/opus_nonshared.go
+++ b/opus_nonshared.go
@@ -2,7 +2,7 @@
 
 package gopus // import "layeh.com/gopus"
 
-// #cgo linux darwin freebsd LDFLAGS: -lm
+// #cgo linux darwin freebsd openbsd LDFLAGS: -lm
 //
 // #cgo CFLAGS: -Iopus-1.1.2/include -Iopus-1.1.2/celt -Iopus-1.1.2/silk -Iopus-1.1.2/silk/float -Iopus-1.1.2/silk/fixed
 //