diff --git a/libmpcodecs/ad_realaud.c b/libmpcodecs/ad_realaud.c
index 0493b7c0ae..632a2ed61e 100644
--- a/libmpcodecs/ad_realaud.c
+++ b/libmpcodecs/ad_realaud.c
@@ -34,7 +34,7 @@ void __builtin_delete(void* ize) {
 	free(ize);
 }
 
-#if defined(__FreeBSD__) || defined(__NetBSD__)
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
 void *__ctype_b=NULL;
 #endif
 
diff --git a/libmpcodecs/vd_realvid.c b/libmpcodecs/vd_realvid.c
index fd868d4df2..ff0925ee46 100644
--- a/libmpcodecs/vd_realvid.c
+++ b/libmpcodecs/vd_realvid.c
@@ -78,7 +78,7 @@ void __pure_virtual(void) {
 //	exit(1);
 }
 
-#if defined(__FreeBSD__) || defined(__NetBSD__)
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
 void ___brk_addr(void) {exit(0);}
 char **__environ={NULL};
 #undef stderr