diff --git a/src/codegen/llvm.zig b/src/codegen/llvm.zig
index 418bcc4a26..c92c70b310 100644
--- a/src/codegen/llvm.zig
+++ b/src/codegen/llvm.zig
@@ -265,7 +265,12 @@ pub fn targetTriple(allocator: Allocator, target: std.Target) ![]const u8 {
         .eabihf => "eabihf",
         .android => "android",
         .androideabi => "androideabi",
-        .musl => "musl",
+        .musl => switch (target.os.tag) {
+            // For WASI/Emscripten, "musl" refers to the libc, not really the ABI.
+            // "unknown" provides better compatibility with LLVM-based tooling for these targets.
+            .wasi, .emscripten => "unknown",
+            else => "musl",
+        },
         .muslabin32 => "musl", // Should be muslabin32 in LLVM 20.
         .muslabi64 => "musl", // Should be muslabi64 in LLVM 20.
         .musleabi => "musleabi",