diff --git a/src/cmp/sysfun.lsp b/src/cmp/sysfun.lsp
index 65e7d7021..ab4311d9b 100644
--- a/src/cmp/sysfun.lsp
+++ b/src/cmp/sysfun.lsp
@@ -976,18 +976,15 @@
 (proclaim-function characterp (t) t :predicate t :no-side-effects t)
 (def-inline characterp :always (t) :bool "CHARACTERP(#0)")
 
-#+unicode #+unicode
 (proclaim-function base-char-p (t) t :predicate t :no-side-effects t)
-(def-inline base-char-p :always (t) :bool "BASE_CHAR_P(#0)")
+(def-inline base-char-p :always (character) :bool "BASE_CHAR_P(#0)")
 
 (proclaim-function stringp (t) t :predicate t :no-side-effects t)
-#-unicode
-(def-inline stringp :always (t) :bool "type_of(#0)==t_base_string")
-#+unicode
-(def-inline base-string-p :always (t) :bool "type_of(#0)==t_base_string")
-#+unicode
 (def-inline stringp :always (t) :bool "ecl_stringp(#0)")
 
+(proclaim-function base-string-p (t) t :predicate t :no-side-effects t)
+(def-inline base-string-p :always (t) :bool "type_of(#0)==t_base_string")
+
 (proclaim-function bit-vector-p (t) t :predicate t :no-side-effects t)
 (def-inline bit-vector-p :always (t) :bool "(type_of(#0)==t_bitvector)")
 
diff --git a/src/lsp/predlib.lsp b/src/lsp/predlib.lsp
index 50218c942..072478b3b 100644
--- a/src/lsp/predlib.lsp
+++ b/src/lsp/predlib.lsp
@@ -197,9 +197,6 @@ has no fill-pointer, and is not adjustable."
 	     (ATOM . ATOM)
              #-unicode
 	     (EXTENDED-CHAR . CONSTANTLY-NIL)
-             #-unicode
-	     (BASE-CHAR . CHARACTERP)
-             #+unicode
 	     (BASE-CHAR . BASE-CHAR-P)
 	     (CHARACTER . CHARACTERP)
 	     (COMPILED-FUNCTION . COMPILED-FUNCTION-P)
@@ -350,25 +347,22 @@ Returns T if X belongs to TYPE; NIL otherwise."
     (CONS (and (consp object)
 	       (or (endp i) (typep (car object) (first i)))
 	       (or (endp (cdr i)) (typep (cdr object) (second i)))))
+    (BASE-STRING
+     (and (base-string-p object)
+          (or (null i) (match-dimensions object i))))
     (STRING
      (and (stringp object)
           (or (null i) (match-dimensions object i))))
-    #+unicode
-    (BASE-STRING
-     (and (stringp object)
-	  (typep (array-element-type object) 'base-char)
-          (or (null i) (match-dimensions object i))))
     (BIT-VECTOR
      (and (bit-vector-p object)
           (or (null i) (match-dimensions object i))))
+    (SIMPLE-BASE-STRING
+     (and (base-string-p object)
+          (simple-string-p object)
+	  (or (null i) (match-dimensions object i))))
     (SIMPLE-STRING
      (and (simple-string-p object)
           (or (null i) (match-dimensions object i))))
-    #+unicode
-    (SIMPLE-BASE-STRING
-     (and (simple-string-p object)
-	  (base-string-p object)
-          (or (null i) (match-dimensions object i))))
     (SIMPLE-BIT-VECTOR
      (and (simple-bit-vector-p object)
           (or (null i) (match-dimensions object i))))
diff --git a/src/lsp/seqlib.lsp b/src/lsp/seqlib.lsp
index dfc2aa5f8..4f3e3c1c2 100644
--- a/src/lsp/seqlib.lsp
+++ b/src/lsp/seqlib.lsp
@@ -16,7 +16,6 @@
 (defun seqtype (sequence)
   (declare (si::c-local))
   (cond ((listp sequence) 'list)
-	#+unicode
 	((base-string-p sequence) 'base-string)
         ((stringp sequence) 'string)
         ((bit-vector-p sequence) 'bit-vector)