diff --git a/libguile/tags.h b/libguile/tags.h
index de2d872cc..7fbe7989e 100644
--- a/libguile/tags.h
+++ b/libguile/tags.h
@@ -576,9 +576,6 @@ extern char *scm_isymnames[];   /* defined in print.c */
 
 #if (SCM_DEBUG_DEPRECATED == 0)
 
-#define SCM_UNPACK_CAR(x) (SCM_CELL_WORD_0 (x))
-#define SCM_NDOUBLE_CELLP(x) (!SCM_DOUBLE_CELLP (x))
-
 #define scm_tc16_flo		scm_tc16_real
 #define scm_tc_flo		0x017fL
 #define scm_tc_dblr		scm_tc16_real