diff --git a/mk/vrbrain_targets.mk b/mk/vrbrain_targets.mk
index 658fd74469..63300f0902 100644
--- a/mk/vrbrain_targets.mk
+++ b/mk/vrbrain_targets.mk
@@ -32,7 +32,7 @@ endif
 
 
 
-# we have different config files for vrbrain_v40, vrbrain_v45, vrbrain_v50, vrbrain_v51, vrubrain_v51, vrubrain_v52 and vrhero_v10
+# we have different config files for vrbrain_v40, vrbrain_v45, vrbrain_v50, vrbrain_v51, vrbrain_v52, vrubrain_v51, vrubrain_v52 and vrhero_v10
 VRBRAIN_MK_DIR=$(SRCROOT)/$(MK_DIR)/VRBRAIN
 
 VRBRAIN_VB40_CONFIG_FILE=config_vrbrain-v40_APM.mk
@@ -58,8 +58,8 @@ SKETCHFLAGS=$(SKETCHLIBINCLUDES) -I$(PWD) -DARDUPILOT_BUILD -DTESTS_MATHLIB_DISA
 
 WARNFLAGS = -Wno-psabi -Wno-packed
 
-VRBRAIN_MAKE = $(v) make -C $(SKETCHBOOK) -f $(VRBRAIN_ROOT)/Makefile EXTRADEFINES="$(SKETCHFLAGS) $(WARNFLAGS) "'$(EXTRAFLAGS)' APM_MODULE_DIR=$(SKETCHBOOK) SKETCHBOOK=$(SKETCHBOOK) VRBRAIN_ROOT=$(VRBRAIN_ROOT) VRBRAIN_NUTTX_SRC=$(VRBRAIN_NUTTX_SRC) MAXOPTIMIZATION="-Os"
-VRBRAIN_MAKE_ARCHIVES = make -C $(VRBRAIN_ROOT) VRBRAIN_NUTTX_SRC=$(VRBRAIN_NUTTX_SRC) archives MAXOPTIMIZATION="-Os"
+VRBRAIN_MAKE = $(v) make -C $(SKETCHBOOK) -f $(VRBRAIN_ROOT)/Makefile EXTRADEFINES="$(SKETCHFLAGS) $(WARNFLAGS) "'$(EXTRAFLAGS)' APM_MODULE_DIR=$(SKETCHBOOK) SKETCHBOOK=$(SKETCHBOOK) CCACHE=$(CCACHE) VRBRAIN_ROOT=$(VRBRAIN_ROOT) VRBRAIN_NUTTX_SRC=$(VRBRAIN_NUTTX_SRC) MAXOPTIMIZATION="-Os"
+VRBRAIN_MAKE_ARCHIVES = make -C $(VRBRAIN_ROOT) VRBRAIN_NUTTX_SRC=$(VRBRAIN_NUTTX_SRC) CCACHE=$(CCACHE) archives MAXOPTIMIZATION="-Os"
 
 .PHONY: module_mk
 module_mk: