diff --git a/numeric.c b/numeric.c
index f51f398b4f..6ec7caf921 100644
--- a/numeric.c
+++ b/numeric.c
@@ -1104,7 +1104,7 @@ double_div_double(double x, double y)
     }
 }
 
-VALUE
+MJIT_FUNC_EXPORTED VALUE
 rb_flo_div_flo(VALUE x, VALUE y)
 {
     double num = RFLOAT_VALUE(x);
diff --git a/test/ruby/test_jit.rb b/test/ruby/test_jit.rb
index dbc8732e4c..b1c43bd5dc 100644
--- a/test/ruby/test_jit.rb
+++ b/test/ruby/test_jit.rb
@@ -463,6 +463,7 @@ class TestJIT < Test::Unit::TestCase
 
   def test_compile_insn_opt_calc
     assert_compile_once('4 + 2 - ((2 * 3 / 2) % 2)', result_inspect: '5', insns: %i[opt_plus opt_minus opt_mult opt_div opt_mod])
+    assert_compile_once('4.0 + 2.0 - ((2.0 * 3.0 / 2.0) % 2.0)', result_inspect: '5.0', insns: %i[opt_plus opt_minus opt_mult opt_div opt_mod])
     assert_compile_once('4 + 2', result_inspect: '6')
   end