diff --git a/sympy.spec b/sympy.spec
index b412ca5..b650f0a 100644
--- a/sympy.spec
+++ b/sympy.spec
@@ -99,6 +99,12 @@ done
 # The classic sphinx theme is explicitly needed.
 sed -i "/html_style/ahtml_theme = 'classic'" %{sympydir}/doc/src/conf.py
 
+# If running on a 32-bit system, disable a test that requires 64-bit integers.
+%global maxpyint %(python3 -c 'import sys;print("%x" % sys.maxsize'))
+if [ "%{maxpyint}" = "7fffffff" ]; then
+  sed -i '/issue 6393/,/assert b == -d/d' sympy/polys/tests/test_rootoftools.py
+fi
+
 # Make a copy for building the python3 version
 cp -a %{sympydir} python3