diff --git a/mk/common.mk b/mk/common.mk
index 0ad132630..1178a10a0 100644
--- a/mk/common.mk
+++ b/mk/common.mk
@@ -15,7 +15,7 @@ CFLAGS+=	-Werror=return-type
 DEPFILES_NONEMPTY=	$(DEPFILES) /nonexistent
 -include $(DEPFILES_NONEMPTY:=)
 
-.SUFFIXES: .pico .in .bin .binin
+.SUFFIXES: .pico .in .bin .binin .so.1 .so.1in
 
 .c.o:
 	$(CC) -Wall -Wextra -std=gnu11 -D_GNU_SOURCE=1 -MT $@ -MD -MP -MF $*.Tpo -o $@ -c $(CFLAGS) $(LOCAL_CFLAGS) $<
@@ -31,3 +31,6 @@ DEPFILES_NONEMPTY=	$(DEPFILES) /nonexistent
 
 .binin.bin:
 	cp $< $@
+
+.so.1in.so.1:
+	cp $< $@
diff --git a/tests/Makefile.autosetup b/tests/Makefile.autosetup
index 556f153ef..69d462559 100644
--- a/tests/Makefile.autosetup
+++ b/tests/Makefile.autosetup
@@ -79,7 +79,10 @@ TESTS_SHELL_BINS= \
 	frontend/macos.bin \
 	frontend/macos106.bin \
 	frontend/macos150.bin \
-	frontend/macosfat.bin
+	frontend/macosfat.bin \
+	frontend/libtestfbsd.so.1 \
+	frontend/libtest2fbsd.so.1 \
+	frontend/libfoo.so.1
 
 lua_OBJS=	lib/lua.o
 merge_OBJS=	lib/merge.o
diff --git a/tests/frontend/libfoo.so.1 b/tests/frontend/libfoo.so.1in
similarity index 100%
rename from tests/frontend/libfoo.so.1
rename to tests/frontend/libfoo.so.1in
diff --git a/tests/frontend/libtest2fbsd.so.1 b/tests/frontend/libtest2fbsd.so.1in
similarity index 100%
rename from tests/frontend/libtest2fbsd.so.1
rename to tests/frontend/libtest2fbsd.so.1in
diff --git a/tests/frontend/libtestfbsd.so.1 b/tests/frontend/libtestfbsd.so.1in
similarity index 100%
rename from tests/frontend/libtestfbsd.so.1
rename to tests/frontend/libtestfbsd.so.1in