diff --git a/libc/src/__support/str_to_float.h b/libc/src/__support/str_to_float.h
--- a/libc/src/__support/str_to_float.h
+++ b/libc/src/__support/str_to_float.h
@@ -1052,13 +1052,12 @@
 
       // If the result is in the valid range, then we use it. The valid range is
       // also within the int32 range, so this prevents overflow issues.
-      if (temp_exponent < fputil::FPBits<T>::MAX_EXPONENT &&
-          temp_exponent > -fputil::FPBits<T>::MAX_EXPONENT) {
-        exponent = static_cast<int32_t>(temp_exponent);
-      } else if (temp_exponent > fputil::FPBits<T>::MAX_EXPONENT) {
+      if (temp_exponent > fputil::FPBits<T>::MAX_EXPONENT) {
         exponent = fputil::FPBits<T>::MAX_EXPONENT;
-      } else {
+      } else if (temp_exponent < -fputil::FPBits<T>::MAX_EXPONENT) {
         exponent = -fputil::FPBits<T>::MAX_EXPONENT;
+      } else {
+        exponent = static_cast<int32_t>(temp_exponent);
       }
     }
   }
diff --git a/libc/test/src/stdlib/strtod_test.cpp b/libc/test/src/stdlib/strtod_test.cpp
--- a/libc/test/src/stdlib/strtod_test.cpp
+++ b/libc/test/src/stdlib/strtod_test.cpp
@@ -220,6 +220,9 @@
       "200000000000000000E608",
       1462, uint64_t(0x7ff0000000000000), ERANGE);
 
+  // Same as above but for hex.
+  run_test("0x0164810157p2047", 17, uint64_t(0x7ff0000000000000), ERANGE);
+
   // This bug was in the handling of very large exponents in the exponent
   // marker. Previously anything greater than 10,000 would be set to 10,000.
   // This caused incorrect behavior if there were more than 10,000 '0's in the