diff --git a/test/c/leak-run.sh b/test/c/leak-run.sh
index 5733e0023..33b8743c3 100755
--- a/test/c/leak-run.sh
+++ b/test/c/leak-run.sh
@@ -48,7 +48,7 @@ for t in leak_si_locker leak_si_mvcc_mtx mvcc_purge_visible health_stats \
 	echo "=== building $t"
 	# shellcheck disable=SC2086
 	$CC -g -O1 -Wall -Wextra -Wno-unused-parameter \
-		-I"$BUILD" "$HERE/$t.c" "$BUILD/libdb.a" \
+		-I"$BUILD" -I"$HERE/../../src" "$HERE/$t.c" "$BUILD/libdb.a" \
 		$LDF $LIBS -ldl -lpthread -o "$RUNDIR/$t"
 done