diff --git a/src/consspaceobject.c b/src/consspaceobject.c
index da0be0b..d3628e6 100644
--- a/src/consspaceobject.c
+++ b/src/consspaceobject.c
@@ -204,7 +204,7 @@ struct cons_pointer make_symbol( wint_t c, struct cons_pointer tail ) {
  */
 struct cons_pointer
 make_special( struct cons_pointer src, struct cons_pointer ( *executable )
-               ( struct struct stack_frame * frame,
+               ( struct stack_frame * frame,
                  struct cons_pointer env  ) ) {
     struct cons_pointer pointer = allocate_cell( SPECIALTAG );
     struct cons_space_object *cell = &pointer2cell( pointer );
diff --git a/src/consspaceobject.h b/src/consspaceobject.h
index e87255a..f5f1e25 100644
--- a/src/consspaceobject.h
+++ b/src/consspaceobject.h
@@ -425,9 +425,8 @@ struct cons_pointer make_function( struct cons_pointer src,
  */
 struct cons_pointer make_special( struct cons_pointer src,
                                   struct cons_pointer ( *executable )
-                                   ( struct cons_pointer s_expr,
-                                     struct cons_pointer env,
-                                     struct stack_frame * frame ) );
+                                   ( struct stack_frame * frame,
+                                    struct cons_pointer env ) );
 
 /**
  * Construct a string from this character and this tail. A string is
diff --git a/src/repl.c b/src/repl.c
index 968306d..476aebe 100644
--- a/src/repl.c
+++ b/src/repl.c
@@ -13,6 +13,7 @@
 #include "lispops.h"
 #include "read.h"
 #include "print.h"
+#include "stack.h"
 
 /**
  * The read/eval/print loop
@@ -33,7 +34,7 @@ repl( FILE * in_stream, FILE * out_stream, FILE * error_stream,
                   input.offset );
         print( error_stream, input );
 
-        struct stack_frame *frame = make_empty_frame( NIL, oblist );
+        struct stack_frame *frame = make_empty_frame( NULL, oblist );
         frame->arg[0] = input;
         struct cons_pointer value = lisp_eval( frame, oblist );
         free_stack_frame( frame );