diff --git a/src/pipewire/conf.c b/src/pipewire/conf.c
index c29d45648..ef0f88717 100644
--- a/src/pipewire/conf.c
+++ b/src/pipewire/conf.c
@@ -918,8 +918,11 @@ static char **pw_strv_insert_at(char **strv, int len, int pos, const char *str)
 		while (strv != NULL && strv[len] != NULL)
 			len++;
 	}
-	if (pos < 0 || pos > len)
-		pos = len+1;
+
+	if (pos < 0)
+		pos = 0;
+	else if (pos > len)
+		pos = len;
 
 	n = realloc(strv, sizeof(char*) * (len + 2));
 	if (n == NULL) {