diff --git a/shim/third-party/rust/fixups/serde_json/fixups.toml b/shim/third-party/rust/fixups/serde_json/fixups.toml
index db40d72cb..5e026f75e 100644
--- a/shim/third-party/rust/fixups/serde_json/fixups.toml
+++ b/shim/third-party/rust/fixups/serde_json/fixups.toml
@@ -1 +1,2 @@
-buildscript = []
+[[buildscript]]
+[buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/zstd-sys/fixups.toml b/shim/third-party/rust/fixups/zstd-sys/fixups.toml
index 164b6a723..2e2d70426 100644
--- a/shim/third-party/rust/fixups/zstd-sys/fixups.toml
+++ b/shim/third-party/rust/fixups/zstd-sys/fixups.toml
@@ -21,6 +21,8 @@ srcs = [
 headers = [
     "zdict.h",
     "zstd.h",
+    "zstd/lib/common/allocations.h",
+    "zstd/lib/common/bits.h",
     "zstd/lib/common/bitstream.h",
     "zstd/lib/common/compiler.h",
     "zstd/lib/common/cpu.h",
@@ -32,7 +34,7 @@ headers = [
     "zstd/lib/common/pool.h",
     "zstd/lib/common/portability_macros.h",
     "zstd/lib/common/threading.h",
-    #"zstd/lib/common/xxhash.h",
+    "zstd/lib/common/xxhash.h",
     "zstd/lib/common/zstd_deps.h",
     "zstd/lib/common/zstd_internal.h",
     "zstd/lib/common/zstd_trace.h",
@@ -78,6 +80,8 @@ srcs = [
 headers = [
     "zdict.h",
     "zstd.h",
+    "zstd/lib/common/allocations.h",
+    "zstd/lib/common/bits.h",
     "zstd/lib/common/bitstream.h",
     "zstd/lib/common/compiler.h",
     "zstd/lib/common/cpu.h",
@@ -89,7 +93,7 @@ headers = [
     "zstd/lib/common/pool.h",
     "zstd/lib/common/portability_macros.h",
     "zstd/lib/common/threading.h",
-    #"zstd/lib/common/xxhash.h",
+    "zstd/lib/common/xxhash.h",
     "zstd/lib/common/zstd_deps.h",
     "zstd/lib/common/zstd_internal.h",
     "zstd/lib/common/zstd_trace.h",