diff --git a/platform/xilinx/xilinx.mk b/platform/xilinx/xilinx.mk
index 19b3e91..3581759 100644
--- a/platform/xilinx/xilinx.mk
+++ b/platform/xilinx/xilinx.mk
@@ -1,10 +1,15 @@
-#------------------------------------------------------------------------------
-#                           ENVIRONMENT VARIABLES
-#------------------------------------------------------------------------------
+$(call check-var,XILINX_VITIS_CLASSIC)
+$(call check-var,PLATFORM_TOOLS)
+$(call check-var,CONFIG_FILE)
+$(call check-var,BUILD_DIR)
+$(call check-var,PROJECT_LOCK)
+$(call check-var,BUILD_LOCK)
+$(call check-var,LINK_SRCS)
+
 define tcl_util
-	xsct -nodisp $(PLATFORM_TOOLS)/util.tcl		\
-	     $(1)									\
-		 $(CONFIG_FILE) $(BUILD_DIR)
+	xsct -nodisp $(PLATFORM_TOOLS)/util.tcl \
+		$(1)                                \
+		$(CONFIG_FILE) $(BUILD_DIR)
 endef
 
 PHONY += xilinx_reset xilinx_project xilinx_sdkclean xilinx_sdkbuild