diff --git a/src/test/run-make/coverage-reports/Makefile b/src/test/run-make/coverage-reports/Makefile
index 407992c9f43..436aebf1174 100644
--- a/src/test/run-make/coverage-reports/Makefile
+++ b/src/test/run-make/coverage-reports/Makefile
@@ -132,7 +132,7 @@ include clear_expected_if_blessed
 			--instr-profile="$(TMPDIR)"/$@.profdata \
 			$(call BIN,"$(TMPDIR)"/$@) \
 			$$( \
-				for file in $(TMPDIR)/rustdoc-$@/*/rust_out; do \
+				for file in $(TMPDIR)/rustdoc-$@/*/rust_out*; do \
 				[ -x "$$file" ] && printf "%s %s " -object $$file; \
 				done \
 			) \