diff --git a/tools/Makefile b/tools/Makefile
index dccf298af6..a48aa80db3 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -79,7 +79,7 @@ ifneq ($(HOST_OS),Linux)
 endif
 
 ifneq ($(CONFIG_CCACHE)$(CONFIG_SDK),)
-$(foreach tool, $(filter-out xz zstd patch pkgconf libressl cmake,$(tools-y)), $(eval $(curdir)/$(tool)/compile += $(curdir)/ccache/compile))
+$(foreach tool, $(filter-out xz zstd patch pkgconf libressl ninja cmake,$(tools-y)), $(eval $(curdir)/$(tool)/compile += $(curdir)/ccache/compile))
 tools-y += ccache
 $(curdir)/ccache/compile := $(curdir)/zstd/compile
 endif
diff --git a/tools/ninja/Makefile b/tools/ninja/Makefile
index 3cbd6aebba..0ff642a740 100644
--- a/tools/ninja/Makefile
+++ b/tools/ninja/Makefile
@@ -20,7 +20,7 @@ endef
 
 define Host/Compile
 	cd $(HOST_BUILD_DIR) && \
-		CXX="$(HOSTCXX)" \
+		CXX="$(HOSTCXX_NOCACHE)" \
 		CXXFLAGS="$(HOST_CXXFLAGS) $(HOST_CPPFLAGS)" \
 		LDFLAGS="$(HOST_LDFLAGS)" \
 		$(STAGING_DIR_HOST)/bin/$(PYTHON) configure.py --bootstrap $(CONFIGURE_ARGS)