diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6dd320fd02..68295dee03 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ Each release's page on GitHub has its notes and measurements. See [the 1.0.0 rel
 
 ## Unreleased
 
+- Tests: `zig build test-glm-snapshots-host` builds again: its copies module imports `core`, which `cuda_snaps.zig` reads for `TF_GLM_PROMPT_TAIL` since #2226 (#2403). Thanks to @Bizuayeu.
+
 - HIP: on RDNA 3.5 (gfx1150 to gfx1153) a prompt row gets the same bytes wherever its chunk starts. The 64-row prompt tile there now takes each key past a row's causal edge as +0, as RDNA 3.5's dot2 rounds a -0 lane apart from +0, so its prompt bits change, and gfx1151's prefill is up to 0.7% slower at 2k and 8k. Other chips keep main's prompt tile and bits, and gfx1201's prompt speed is main's within noise. On every chip, a non-finite value at a key past a row's edge now adds nothing to that row (#2357). Thanks to @laudney.
 
 - GLM CUDA at TP=2 and up: each rank names its startup phases (NCCL init, peer warm-up, weights, calibration, ready), prints NCCL's init device, version and log path, and warns once a minute while NCCL init or the warm-up is unfinished, with the transport seen so far. It only reports; transfers are unchanged (#2354, part of #2347).
diff --git a/zig/build/glm_family_host.zig b/zig/build/glm_family_host.zig
index 9a51362712..95a5a690f3 100644
--- a/zig/build/glm_family_host.zig
+++ b/zig/build/glm_family_host.zig
@@ -48,7 +48,7 @@ pub fn steps(b: *std.Build, cuda: *std.Build.Module, glm: *std.Build.Module, mod
     const admission_run = b.addRunArtifact(b.addTest(.{ .root_module = admission, .filters = &.{"GLM CUDA admission:"} }));
     b.step("test-glm-admission-host", "Real GLM admission capabilities through the lane worker without GPU work").dependOn(&admission_run.step);
     step.dependOn(&admission_run.step);
-    const copies = b.createModule(.{ .root_source_file = b.path("zig/src/native/cuda_snaps.zig"), .target = host, .optimize = .debug, .imports = &.{.{ .name = "engine_api", .module = api }} });
+    const copies = b.createModule(.{ .root_source_file = b.path("zig/src/native/cuda_snaps.zig"), .target = host, .optimize = .debug, .imports = &.{ .{ .name = "engine_api", .module = api }, .{ .name = "core", .module = mods.core } } });
     const snapshots = b.createModule(.{ .root_source_file = b.path("zig/glm_snapshot_host.zig"), .target = host, .optimize = .debug, .link_libc = true, .imports = &.{ .{ .name = "glm", .module = glm }, .{ .name = "cuda", .module = cuda }, .{ .name = "core", .module = mods.core }, .{ .name = "engine_api", .module = api }, .{ .name = "copies", .module = copies } } });
     b.step("test-glm-snapshots-host", "Prompt-sized GLM state copies, page budgets and rank ordering without devices").dependOn(&b.addRunArtifact(b.addTest(.{ .root_module = snapshots })).step);
     b.step("test-glm-prompt-settings-host", "Actual opt-in settings and rank agreement on the CPU").dependOn(&b.addRunArtifact(b.addTest(.{ .root_module = glm, .filters = &.{"prompt K experiment"} })).step);