diff --git a/contrib/pgbench/pgbench.c b/contrib/pgbench/pgbench.c
index 456da705048..0384231083b 100644
--- a/contrib/pgbench/pgbench.c
+++ b/contrib/pgbench/pgbench.c
@@ -723,6 +723,7 @@ runShellCommand(CState *st, char *variable, char **argv, int argc)
 	{
 		if (!timer_exceeded)
 			fprintf(stderr, "%s: cannot read the result\n", argv[0]);
+		(void) pclose(fp);
 		return false;
 	}
 	if (pclose(fp) < 0)