1 diff --git a/include/test.mk b/include/test.mk
2 index 1a4fc220..e965c600 100644
5 @@ -50,6 +50,9 @@ CFLAGS = $(OPTIMIZATIONS) -std=gnu11 \
6 # of the "include" directory
7 CFLAGS += -isystem $(shell $(CC) $(ARCH_CFLAGS) -print-file-name=include-fixed)
9 +# And on Debian also check the multi-arch include path
10 +CFLAGS += -isystem /usr/include/$(shell $(CC) $(ARCH_CFLAGS) -print-multiarch)
12 export CFLAGS_LTO CFLAGS_GCOV