diff --git a/include/boost/decimal/charconv.hpp b/include/boost/decimal/charconv.hpp
index 5fe93836f..cc17272ce 100644
--- a/include/boost/decimal/charconv.hpp
+++ b/include/boost/decimal/charconv.hpp
@@ -535,7 +535,7 @@ BOOST_DECIMAL_CONSTEXPR auto to_chars_fixed_impl(char* first, char* last, const
             if (num_dig == precision + 1)
             {
                 --num_dig;
-                exponent += fenv_round(significand);
+                exponent += fenv_round<TargetDecimalType>(significand);
             }
         }
         else if (num_dig < precision && fmt != chars_format::general)
@@ -602,7 +602,7 @@ BOOST_DECIMAL_CONSTEXPR auto to_chars_fixed_impl(char* first, char* last, const
     }
 
     // Bounds check again
-    if (precision == 0)
+    if (precision == 0 && !append_trailing_zeros && !append_leading_zeros)
     {
         return {r.ptr, std::errc()};
     }
@@ -691,6 +691,11 @@ BOOST_DECIMAL_CONSTEXPR auto to_chars_fixed_impl(char* first, char* last, const
 
         boost::decimal::detail::memset(r.ptr, '0', zeros_inserted);
         r.ptr += zeros_inserted;
+
+        if (*(r.ptr - 1) == '.')
+        {
+            --r.ptr;
+        }
     }
 
     return {r.ptr, std::errc()};
diff --git a/test/test_to_chars.cpp b/test/test_to_chars.cpp
index c9b2ee4e3..88594ccf0 100644
--- a/test/test_to_chars.cpp
+++ b/test/test_to_chars.cpp
@@ -750,6 +750,18 @@ void test_434_hex()
     test_value(test_one_and_quarter, "7.d0000000000000000000000000000000000000000000000000p-01", chars_format::hex, 50);
 }
 
+template <typename T>
+void test_777()
+{
+    constexpr T value1 = T {21, 6, true};
+    constexpr T value2 = T {211, 6, true};
+    constexpr T value3 = T {2111, 6, true};
+
+    test_value(value1, "-21000000", chars_format::fixed, 0);
+    test_value(value2, "-211000000", chars_format::fixed, 0);
+    test_value(value3, "-2111000000", chars_format::fixed, 0);
+}
+
 int main()
 {
     test_non_finite_values<decimal32>();
@@ -853,6 +865,13 @@ int main()
     test_general_format_std<decimal64>();
     #endif
 
+    test_777<decimal32>();
+    test_777<decimal64>();
+    test_777<decimal128>();
+    test_777<decimal32_fast>();
+    test_777<decimal64_fast>();
+    test_777<decimal128_fast>();
+
     return boost::report_errors();
 }