diff --git a/lib/libc/wasi/libc-bottom-half/crt/crt1.c b/lib/libc/wasi/libc-bottom-half/crt/crt1.c
deleted file mode 100644
index 5e164dddba..0000000000
--- a/lib/libc/wasi/libc-bottom-half/crt/crt1.c
+++ /dev/null
@@ -1,24 +0,0 @@
-#include <wasi/api.h>
-extern void __wasm_call_ctors(void);
-extern int __original_main(void);
-extern void __wasm_call_dtors(void);
-
-__attribute__((export_name("_start")))
-void _start(void) {
-    // The linker synthesizes this to call constructors.
-    __wasm_call_ctors();
-
-    // Call `__original_main` which will either be the application's zero-argument
-    // `__original_main` function or a libc routine which calls `__main_void`.
-    // TODO: Call `main` directly once we no longer have to support old compilers.
-    int r = __original_main();
-
-    // Call atexit functions, destructors, stdio cleanup, etc.
-    __wasm_call_dtors();
-
-    // If main exited successfully, just return, otherwise call
-    // `__wasi_proc_exit`.
-    if (r != 0) {
-        __wasi_proc_exit(r);
-    }
-}
diff --git a/src/wasi_libc.zig b/src/wasi_libc.zig
index 06d83aff36..0ef8d4f4d4 100644
--- a/src/wasi_libc.zig
+++ b/src/wasi_libc.zig
@@ -9,7 +9,6 @@ const target_util = @import("target.zig");
 const musl = @import("musl.zig");
 
 pub const CRTFile = enum {
-    crt1_o,
     crt1_reactor_o,
     crt1_command_o,
     libc_a,
@@ -71,19 +70,6 @@ pub fn buildCRTFile(comp: *Compilation, crt_file: CRTFile) !void {
     const arena = &arena_allocator.allocator;
 
     switch (crt_file) {
-        .crt1_o => {
-            var args = std.ArrayList([]const u8).init(arena);
-            try addCCArgs(comp, arena, &args, false);
-            try addLibcBottomHalfIncludes(comp, arena, &args);
-            return comp.build_crt_file("crt1", .Obj, &[1]Compilation.CSourceFile{
-                .{
-                    .src_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{
-                        "libc", try sanitize(arena, crt1_src_file),
-                    }),
-                    .extra_flags = args.items,
-                },
-            });
-        },
         .crt1_reactor_o => {
             var args = std.ArrayList([]const u8).init(arena);
             try addCCArgs(comp, arena, &args, false);
@@ -1151,7 +1137,6 @@ const libc_top_half_src_files = [_][]const u8{
     "wasi/libc-top-half/sources/arc4random.c",
 };
 
-const crt1_src_file = "wasi/libc-bottom-half/crt/crt1.c";
 const crt1_command_src_file = "wasi/libc-bottom-half/crt/crt1-command.c";
 const crt1_reactor_src_file = "wasi/libc-bottom-half/crt/crt1-reactor.c";