diff --git a/mk/crates.mk b/mk/crates.mk
index 433490f6f5d..cc6532945ef 100644
--- a/mk/crates.mk
+++ b/mk/crates.mk
@@ -83,8 +83,8 @@ DEPS_uuid := std serialize
 DEPS_sync := std alloc
 DEPS_getopts := std
 DEPS_collections := core alloc
-DEPS_fourcc := syntax std
-DEPS_hexfloat := syntax std
+DEPS_fourcc := rustc syntax std
+DEPS_hexfloat := rustc syntax std
 DEPS_num := std
 DEPS_test := std getopts serialize term time regex native:rust_test_helpers
 DEPS_time := std serialize sync
@@ -92,7 +92,7 @@ DEPS_rand := core
 DEPS_url := std
 DEPS_log := std sync
 DEPS_regex := std
-DEPS_regex_macros = syntax std regex
+DEPS_regex_macros = rustc syntax std regex
 DEPS_fmt_macros = std
 
 TOOL_DEPS_compiletest := test green rustuv getopts