diff --git a/sqlite-vec.c b/sqlite-vec.c
index 3cc802f0..2d4dc5c8 100644
--- a/sqlite-vec.c
+++ b/sqlite-vec.c
@@ -73,13 +73,7 @@ typedef u_int64_t uint64_t;
 #endif
 #endif
 
-typedef int8_t i8;
-typedef uint8_t u8;
-typedef int16_t i16;
 typedef int32_t i32;
-typedef sqlite3_int64 i64;
-typedef uint32_t u32;
-typedef uint64_t u64;
 typedef float f32;
 typedef size_t usize;