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-rw-r--r--tests/unit/libstore-support/tests/path.cc6
1 files changed, 3 insertions, 3 deletions
diff --git a/tests/unit/libstore-support/tests/path.cc b/tests/unit/libstore-support/tests/path.cc
index 8bf501ab6..ffc4fc607 100644
--- a/tests/unit/libstore-support/tests/path.cc
+++ b/tests/unit/libstore-support/tests/path.cc
@@ -32,13 +32,13 @@ Gen<StorePathName> Arbitrary<StorePathName>::arbitrary()
for (size_t c = 0; c < len; ++c) {
switch (auto i = *gen::inRange<uint8_t>(0, 10 + 2 * 26 + 6)) {
case 0 ... 9:
- pre += '0' + i;
+ pre += static_cast<uint8_t>('0' + i);
break;
case 10 ... 35:
- pre += 'A' + (i - 10);
+ pre += static_cast<uint8_t>('A' + (i - 10));
break;
case 36 ... 61:
- pre += 'a' + (i - 36);
+ pre += static_cast<uint8_t>('a' + (i - 36));
break;
case 62:
pre += '+';