diff --git a/sysdeps/unix/sysv/sco3.2.4/system.c b/sysdeps/unix/sysv/sco3.2.4/system.c
new file mode 100644
index 0000000000..cd97649be5
--- /dev/null
+++ b/sysdeps/unix/sysv/sco3.2.4/system.c
@@ -0,0 +1,3 @@
+/* SCO 3.2v4 does have `waitpid'.
+   Avoid unix/system.c, which says we don't.  */
+#include <sysdeps/posix/system.c>