diff --git a/src/test/test-sizeof.c b/src/test/test-sizeof.c
index 269adfd18f..bfc421e4ba 100644
--- a/src/test/test-sizeof.c
+++ b/src/test/test-sizeof.c
@@ -60,6 +60,8 @@ int main(void) {
         info(time_t);
         info(usec_t);
         info(__time_t);
+        info(pid_t);
+        info(gid_t);
 
         info(enum Enum);
         info(enum BigEnum);