diff --git a/c/fasl.c b/c/fasl.c
index df0061d488..a9f0ef4d94 100644
--- a/c/fasl.c
+++ b/c/fasl.c
@@ -489,6 +489,8 @@ static ptr fasl_entry(ptr tc, IFASLCODE situation, unbufFaslFile uf) {
       case fasl_type_revisit:
       case fasl_type_visit_revisit:
         break;
+      case fasl_type_terminator:
+        return Seof_object;
       default:
         S_error2("", "malformed fasl-object header (missing situation, got ~s) found in ~a", FIX(ty), uf->path);
         return (ptr)0;
diff --git a/s/cmacros.ss b/s/cmacros.ss
index 6f16b54823..f3ce562f41 100644
--- a/s/cmacros.ss
+++ b/s/cmacros.ss
@@ -462,6 +462,8 @@
 (define-constant fasl-type-phantom 44)
 (define-constant fasl-type-uninterned-symbol 45)
 
+(define-constant fasl-type-terminator 127)
+
 (define-constant fasl-fld-ptr 0)
 (define-constant fasl-fld-u8 1)
 (define-constant fasl-fld-i16 2)