diff --git a/camkes_vm_helpers.cmake b/camkes_vm_helpers.cmake
index 1c22659d..01774062 100644
--- a/camkes_vm_helpers.cmake
+++ b/camkes_vm_helpers.cmake
@@ -200,10 +200,7 @@ function(DefineCAmkESVMFileServer)
     # Build CPIO archive. It implicitly depends on all files in CPIO_FILES,
     # which have their own dependencies each from above. So we don't have any
     # additional explicit dependencies here.
-    # Unfortunately MakeCPIO() supports plain file names only, there is no
-    # support for paths. Archive are created in the root of the built output
-    # folder. Creating them in BIN_DIR would be much cleaner actually.
-    set(CPIO_ARCHIVE "${PARAM_INSTANCE}_cpio_archive.o")
+    set(CPIO_ARCHIVE "${INST_BIN_DIR}/cpio_archive.o")
     include(cpio)
     MakeCPIO(${CPIO_ARCHIVE} "${CPIO_FILES}")