diff --git a/iguana/json_reader.hpp b/iguana/json_reader.hpp
index 6a86025b..d9d4c0e0 100644
--- a/iguana/json_reader.hpp
+++ b/iguana/json_reader.hpp
@@ -69,7 +69,7 @@ IGUANA_INLINE void from_json_impl(U &value, It &&it, It &&end) {
       IGUANA_UNLIKELY { throw std::runtime_error("Failed to parse number"); }
     const auto start = &*it;
     auto [p, ec] = detail::from_chars(start, start + size, value);
-    if (ec != std::errc{})
+    if (ec != std::errc{} || *p == '.')
       IGUANA_UNLIKELY { throw std::runtime_error("Failed to parse number"); }
     it += (p - &*it);
   }
@@ -193,11 +193,13 @@ IGUANA_INLINE void from_json_impl(U &value, It &&it, It &&end) {
   else {
     while (it != end) {
       switch (*it) {
-        IGUANA_UNLIKELY case '\\' : ++it;
+      IGUANA_UNLIKELY case '\\':
+        ++it;
         parse_escape(value, it, end);
         break;
-        // IGUANA_UNLIKELY case ']' : return;
-        IGUANA_UNLIKELY case '"' : ++it;
+      // IGUANA_UNLIKELY case ']' : return;
+      IGUANA_UNLIKELY case '"':
+        ++it;
         return;
         IGUANA_LIKELY default : value.push_back(*it);
         ++it;
diff --git a/test/test.cpp b/test/test.cpp
index 79b5240a..616e3441 100644
--- a/test/test.cpp
+++ b/test/test.cpp
@@ -179,6 +179,25 @@ struct nest_t {
 };
 REFLECTION(nest_t, name, value, var);
 
+struct point_t1 {
+  int x;
+  int y;
+};
+REFLECTION(point_t1, x, y);
+
+TEST_CASE("test double to int") {
+  point_t p{1, 0.45};
+  std::string s;
+  iguana::to_json(p, s);
+  std::cout << s << std::endl;
+  point_t1 p2;
+  CHECK_THROWS(iguana::from_json(p2, s));
+
+  point_t p3;
+  iguana::from_json(p3, s);
+  CHECK(p.y == p3.y);
+}
+
 TEST_CASE("test variant") {
   std::variant<int, std::string> var;
   var = 1;