diff --git a/repos/libports/lib/import/import-acpica.mk b/repos/libports/lib/import/import-acpica.mk
index 939e30492f..fe90c1b962 100644
--- a/repos/libports/lib/import/import-acpica.mk
+++ b/repos/libports/lib/import/import-acpica.mk
@@ -1,2 +1,2 @@
 INC_DIR += $(call select_from_ports,acpica)/src/lib/acpica/source/include
-CC_OPT  += -DACPI_INLINE=inline -Wno-unused-variable
+CC_OPT  += -DACPI_INLINE=inline -Wno-builtin-declaration-mismatch
diff --git a/repos/libports/lib/mk/acpica.mk b/repos/libports/lib/mk/acpica.mk
index e53f7454f7..7f53a45ba7 100644
--- a/repos/libports/lib/mk/acpica.mk
+++ b/repos/libports/lib/mk/acpica.mk
@@ -19,7 +19,7 @@ SRC_CC += osl.cc iomem.cc pci.cc env.cc
 
 include $(REP_DIR)/lib/import/import-acpica.mk
 
-CC_C_OPT += -DACPI_LIBRARY
+CC_C_OPT += -DACPI_LIBRARY -Wno-unused-variable -Wno-unused-but-set-variable -Wno-format-truncation
 
 vpath %.c $(ACPICA_COMP)
 vpath %.cc $(REP_DIR)/src/lib/acpica