--- a/config/rules.mk
+++ b/config/rules.mk
@@ -958,25 +958,29 @@ ifdef MOZ_MSVCBITS
 environment_cleaner = PATH='' LIB='' LIBPATH=''
 # The servo build needs to know where python is, and we're removing the PATH
 # so we tell it explicitly via the PYTHON env var.
 environment_cleaner += PYTHON='$(shell which $(PYTHON))'
 else
 environment_cleaner =
 endif
 
+ifdef MOZ_USING_SCCACHE
+sccache_wrap := RUSTC_WRAPPER='$(CCACHE)'
+endif
+
 # This function is intended to be called by:
 #
 #   $(call CARGO_BUILD,EXTRA_ENV_VAR1=X EXTRA_ENV_VAR2=Y ...)
 #
 # but, given the idiosyncracies of make, can also be called without arguments:
 #
 #   $(call CARGO_BUILD)
 define CARGO_BUILD
-env $(environment_cleaner) $(rustflags_override) \
+env $(environment_cleaner) $(rustflags_override) $(sccache_wrap) \
 	CARGO_TARGET_DIR=$(CARGO_TARGET_DIR) \
 	RUSTC=$(RUSTC) \
 	MOZ_SRC=$(topsrcdir) \
 	MOZ_DIST=$(ABS_DIST) \
 	LIBCLANG_PATH="$(MOZ_LIBCLANG_PATH)" \
 	CLANG_PATH="$(MOZ_CLANG_PATH)" \
 	PKG_CONFIG_ALLOW_CROSS=1 \
 	RUST_BACKTRACE=1 \