diff --git a/src/pipewire/utils.h b/src/pipewire/utils.h
index db9322403..c763d468e 100644
--- a/src/pipewire/utils.h
+++ b/src/pipewire/utils.h
@@ -56,7 +56,7 @@ pw_strip(char *str, const char *whitespace);
 
 #if defined(HAVE_STRNDUPA)
 #include <string.h>
-#else
+#elif !defined(strndupa)
 # define strndupa(s, n)								      \
 	({									      \
 		const char *__old = (s);					      \