--- /dev/null
+diff --git a/include/test.mk b/include/test.mk
+index 1a4fc220..e965c600 100644
+--- a/include/test.mk
++++ b/include/test.mk
+@@ -50,6 +50,9 @@ CFLAGS = $(OPTIMIZATIONS) -std=gnu11 \
+ # of the "include" directory
+ CFLAGS += -isystem $(shell $(CC) $(ARCH_CFLAGS) -print-file-name=include-fixed)
+
++# And on Debian also check the multi-arch include path
++CFLAGS += -isystem /usr/include/$(shell $(CC) $(ARCH_CFLAGS) -print-multiarch)
++
+ export CFLAGS_LTO CFLAGS_GCOV
+
+ libefi-test.a :