diff --git a/deps/ox/src/ox/std/types.hpp b/deps/ox/src/ox/std/types.hpp
index ee12eba9..7c768d58 100644
--- a/deps/ox/src/ox/std/types.hpp
+++ b/deps/ox/src/ox/std/types.hpp
@@ -27,6 +27,15 @@ typedef int64_t            intmax_t;
 typedef uint64_t           uintmax_t;
 #endif
 
+static_assert(sizeof(int8_t)  == 1, "int8_t is wrong size");
+static_assert(sizeof(int16_t) == 2, "int16_t is wrong size");
+static_assert(sizeof(int32_t) == 4, "int32_t is wrong size");
+static_assert(sizeof(int64_t) == 8, "int64_t is wrong size");
+
+static_assert(sizeof(uint8_t)  == 1, "uint8_t is wrong size");
+static_assert(sizeof(uint16_t) == 2, "uint16_t is wrong size");
+static_assert(sizeof(uint32_t) == 4, "uint32_t is wrong size");
+static_assert(sizeof(uint64_t) == 8, "uint64_t is wrong size");
 
 namespace ox {