diff --git a/smallapp/unbound-host.c b/smallapp/unbound-host.c
index 5b76f5143..88d0b8a1e 100644
--- a/smallapp/unbound-host.c
+++ b/smallapp/unbound-host.c
@@ -54,7 +54,7 @@
 #undef free
 #undef realloc
 #undef strdup
-char* unbound_lite_wrapstr(char* s) { return s; }
+#define unbound_lite_wrapstr(s) s
 #endif
 #include "libunbound/unbound.h"
 #include <ldns/ldns.h>
diff --git a/testcode/harvest.c b/testcode/harvest.c
index 4f27dda6f..e84f255dc 100644
--- a/testcode/harvest.c
+++ b/testcode/harvest.c
@@ -80,7 +80,7 @@
 #undef realloc
 #undef free
 #undef strdup
-char* unbound_lite_wrapstr(char* s) { return s; }
+#define unbound_lite_wrapstr(s) s
 #endif
 struct todo_item;
 struct labdata;