diff --git a/mk/platform.mk b/mk/platform.mk
index cf6178ec5b043..56864f585f2fe 100644
--- a/mk/platform.mk
+++ b/mk/platform.mk
@@ -542,6 +542,8 @@ ifdef CFG_CCACHE_BASEDIR
   export CCACHE_BASEDIR
 endif
 
+FIND_COMPILER = $(word 1,$(1:ccache=))
+
 define CFG_MAKE_TOOLCHAIN
   # Prepend the tools with their prefix if cross compiling
   ifneq ($(CFG_BUILD),$(1))
@@ -549,7 +551,8 @@ define CFG_MAKE_TOOLCHAIN
 	CXX_$(1)=$(CROSS_PREFIX_$(1))$(CXX_$(1))
 	CPP_$(1)=$(CROSS_PREFIX_$(1))$(CPP_$(1))
 	AR_$(1)=$(CROSS_PREFIX_$(1))$(AR_$(1))
-	RUSTC_CROSS_FLAGS_$(1)=-C linker=$$(CXX_$(1)) -C ar=$$(AR_$(1)) $(RUSTC_CROSS_FLAGS_$(1))
+	RUSTC_CROSS_FLAGS_$(1)=-C linker=$$(call FIND_COMPILER,$$(CXX_$(1))) \
+	    -C ar=$$(call FIND_COMPILER,$$(AR_$(1))) $(RUSTC_CROSS_FLAGS_$(1))
 
 	RUSTC_FLAGS_$(1)=$$(RUSTC_CROSS_FLAGS_$(1)) $(RUSTC_FLAGS_$(1))
   endif