1 files changed, 3 insertions, 3 deletions

diff --git a/src/font.c b/src/font.c
index 9fe7c26ea9c..36e71669453 100644
--- a/src/font.c
+++ b/src/font.c
@@ -5415,19 +5415,19 @@ Each element has the form:
     [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...]
 NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */);
   Vfont_weight_table = BUILD_STYLE_TABLE (weight_table);
-  XSYMBOL (intern_c_string ("font-weight-table"))->constant = 1;
+  make_symbol_constant (intern_c_string ("font-weight-table"));
 
   DEFVAR_LISP_NOPRO ("font-slant-table", Vfont_slant_table,
                doc: /*  Vector of font slant symbols vs the corresponding numeric values.
 See `font-weight-table' for the format of the vector. */);
   Vfont_slant_table = BUILD_STYLE_TABLE (slant_table);
-  XSYMBOL (intern_c_string ("font-slant-table"))->constant = 1;
+  make_symbol_constant (intern_c_string ("font-slant-table"));
 
   DEFVAR_LISP_NOPRO ("font-width-table", Vfont_width_table,
                doc: /*  Alist of font width symbols vs the corresponding numeric values.
 See `font-weight-table' for the format of the vector. */);
   Vfont_width_table = BUILD_STYLE_TABLE (width_table);
-  XSYMBOL (intern_c_string ("font-width-table"))->constant = 1;
+  make_symbol_constant (intern_c_string ("font-width-table"));
 
   staticpro (&font_style_table);
   font_style_table = make_uninit_vector (3);