diff --git a/src/build_log_perftest.cc b/src/build_log_perftest.cc
index ced0df9df7..5a936198fb 100644
--- a/src/build_log_perftest.cc
+++ b/src/build_log_perftest.cc
@@ -112,7 +112,7 @@ int main() {
   {
     // Read once to warm up disk cache.
     BuildLog log;
-    if (!log.Load(kTestFilename, &err)) {
+    if (log.Load(kTestFilename, &err) == LOAD_ERROR) {
       fprintf(stderr, "Failed to read test data: %s\n", err.c_str());
       return 1;
     }
@@ -121,7 +121,7 @@ int main() {
   for (int i = 0; i < kNumRepetitions; ++i) {
     int64_t start = GetTimeMillis();
     BuildLog log;
-    if (!log.Load(kTestFilename, &err)) {
+    if (log.Load(kTestFilename, &err) == LOAD_ERROR) {
       fprintf(stderr, "Failed to read test data: %s\n", err.c_str());
       return 1;
     }
@@ -148,4 +148,3 @@ int main() {
 
   return 0;
 }
-