diff --git a/src/Zcu/PerThread.zig b/src/Zcu/PerThread.zig
index 8c789491b5b3121c3ddebd99451ff0f169d5b157..0346ca21f1310a23ffab3c03ccdfc4585135b2f4 100644
--- a/src/Zcu/PerThread.zig
+++ b/src/Zcu/PerThread.zig
@@ -1866,9 +1866,13 @@ fn analyzeNavVal(
     };
 
     if (is_owned_fn) {
-        // linksection etc are legal, except some targets do not support function alignment.
-        if (zir_decl.align_body != null and !target_util.supportsFunctionAlignment(zcu.getTarget())) {
-            return sema.fail(&block, align_src, "target does not support function alignment", .{});
+        // linksection etc are legal, except some targets do not support function alignment
+        // greater than 1. `align(1)` is a no-op, so it is allowed even on those targets.
+        if (zir_decl.align_body != null and
+            modifiers.@"align" != .@"1" and
+            !target_util.supportsFunctionAlignment(zcu.getTarget()))
+        {
+            return sema.fail(&block, align_src, "target does not support function alignment greater than 1", .{});
         }
     } else if (nav_ty.comptimeOnly(zcu)) {
         // alignment, linksection, addrspace annotations are not allowed for comptime-only types.
diff --git a/test/behavior/align.zig b/test/behavior/align.zig
index 83a100533d77a81a0a77ef38def5e61cb2a29f79..3ef1249e78a49c1abf71d2a42e9c4d130acf4ef3 100644
--- a/test/behavior/align.zig
+++ b/test/behavior/align.zig
@@ -312,7 +312,7 @@ test "function alignment" {
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_spirv) return error.SkipZigTest;
 
-    // function alignment is a compile error on wasm
+    // function alignment greater than 1 is a compile error on wasm
     if (native_arch.isWasm()) return error.SkipZigTest;
 
     const S = struct {
@@ -341,7 +341,7 @@ test "implicitly decreasing fn alignment" {
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_spirv) return error.SkipZigTest;
 
-    // function alignment is a compile error on wasm
+    // function alignment greater than 1 is a compile error on wasm
     if (native_arch.isWasm()) return error.SkipZigTest;
 
     try testImplicitlyDecreaseFnAlign(alignedSmall, 1234);
@@ -364,7 +364,7 @@ test "@alignCast functions" {
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_spirv) return error.SkipZigTest;
 
-    // function alignment is a compile error on wasm
+    // function alignment greater than 1 is a compile error on wasm
     if (native_arch.isWasm()) return error.SkipZigTest;
 
     try expect(fnExpectsOnly1(simple4) == 0x19);
@@ -510,7 +510,7 @@ test "align(N) on functions" {
         return error.SkipZigTest;
     }
 
-    // function alignment is a compile error on wasm
+    // function alignment greater than 1 is a compile error on wasm
     if (native_arch.isWasm()) return error.SkipZigTest;
     if (native_arch.isThumb()) return error.SkipZigTest;
 
diff --git a/test/cases/compile_errors/align_n_expr_function_pointers_is_a_compile_error.zig b/test/cases/compile_errors/align_n_expr_function_pointers_is_a_compile_error.zig
index 2f9907d4892ce0a9e75397b12a60895ba12c2954..d94ed6a83b144ddd295714491843252acf30c03e 100644
--- a/test/cases/compile_errors/align_n_expr_function_pointers_is_a_compile_error.zig
+++ b/test/cases/compile_errors/align_n_expr_function_pointers_is_a_compile_error.zig
@@ -1,8 +1,8 @@
-export fn foo() align(1) void {
+export fn foo() align(2) void {
     return;
 }
 
 // error
 // target=wasm32-freestanding-none
 //
-// :1:23: error: target does not support function alignment
+// :1:23: error: target does not support function alignment greater than 1
diff --git a/test/cases/compile_errors/function_alignment_on_unsupported_target.zig b/test/cases/compile_errors/function_alignment_on_unsupported_target.zig
index 6b70dc94e498c535e21abf510558657260b82120..8c9d4482e47a912b6e23750446165c70843c1ced 100644
--- a/test/cases/compile_errors/function_alignment_on_unsupported_target.zig
+++ b/test/cases/compile_errors/function_alignment_on_unsupported_target.zig
@@ -3,4 +3,4 @@ export fn entry() align(64) void {}
 // error
 // target=nvptx-cuda,nvptx64-cuda,spirv32-opengl,spirv32-vulkan,spirv32-opencl,spirv64-opencl,spirv64-amdhsa,wasm32-freestanding,wasm64-freestanding
 //
-// :1:25: error: target does not support function alignment
+// :1:25: error: target does not support function alignment greater than 1
diff --git a/test/cases/function_alignment_one_on_virtual_target.zig b/test/cases/function_alignment_one_on_virtual_target.zig
new file mode 100644
index 0000000000000000000000000000000000000000..60cbd6ddaabddf0003f2cf9d242ef750c2470b0d
--- /dev/null
+++ b/test/cases/function_alignment_one_on_virtual_target.zig
@@ -0,0 +1,5 @@
+export fn foo() align(1) void {}
+
+// compile
+// backend=selfhosted
+// target=wasm32-freestanding