diff --git a/libs/ardour/lv2_pfile.c b/libs/ardour/lv2_pfile.c
index 6576de1ae8..f5c1c02a78 100644
--- a/libs/ardour/lv2_pfile.c
+++ b/libs/ardour/lv2_pfile.c
@@ -34,7 +34,7 @@ lv2_pfile_open(const char* path, bool write)
 {
 	FILE* fd = fopen(path, (write ? "w" : "r"));
 	if (!fd) {
-		fprintf(stderr, "%s", strerror(errno));
+		fprintf(stderr, "%s\n", strerror(errno));
 		return NULL;
 	}