diff --git a/payload_consumer/delta_performer.cc b/payload_consumer/delta_performer.cc
index 45103e6..43a3b3c 100644
--- a/payload_consumer/delta_performer.cc
+++ b/payload_consumer/delta_performer.cc
@@ -567,7 +567,7 @@
 
     base::TimeTicks op_start_time = base::TimeTicks::Now();
 
-    bool op_result;
+    bool op_result{};
     const string op_name = InstallOperationTypeName(op.type());
     switch (op.type()) {
       case InstallOperation::REPLACE:
@@ -1232,7 +1232,7 @@
         interrupted_hash == update_check_response_hash))
     return false;
 
-  int64_t resumed_update_failures;
+  int64_t resumed_update_failures{};
   // Note that storing this value is optional, but if it is there it should
   // not be more than the limit.
   if (prefs->GetInt64(kPrefsResumedUpdateFailures, &resumed_update_failures) &&
@@ -1412,7 +1412,7 @@
   total_bytes_received_ += buffer_offset_;
 
   // Speculatively count the resume as a failure.
-  int64_t resumed_update_failures;
+  int64_t resumed_update_failures{};
   if (prefs_->GetInt64(kPrefsResumedUpdateFailures, &resumed_update_failures)) {
     resumed_update_failures++;
   } else {
diff --git a/payload_consumer/partition_writer.cc b/payload_consumer/partition_writer.cc
index 1fb929e..3432c89 100644
--- a/payload_consumer/partition_writer.cc
+++ b/payload_consumer/partition_writer.cc
@@ -160,7 +160,7 @@
   // partial updates. Use the source size as the indicator.
 
   target_path_ = install_part_.target_path;
-  int err;
+  int err{};
 
   int flags = O_RDWR;
   if (!interactive_)