diff --git a/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp b/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp
index 28e8b8c..68cd45e 100644
--- a/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp
+++ b/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp
@@ -775,7 +775,7 @@
 }
 
 bool SurfaceInterceptorTest::displayCreationFound(const Increment& increment, bool foundDisplay) {
-    bool isMatch(increment.display_creation().name() == DISPLAY_NAME.string() &&
+    bool isMatch(increment.display_creation().name() == DISPLAY_NAME.c_str() &&
                  !increment.display_creation().is_secure());
     if (isMatch && !foundDisplay) {
         foundDisplay = true;
@@ -816,7 +816,7 @@
                     break;
                 case Increment::IncrementCase::kDisplayDeletion:
                     // Find the id of created display.
-                    targetId = getDisplayId(trace, DISPLAY_NAME.string());
+                    targetId = getDisplayId(trace, DISPLAY_NAME.c_str());
                     foundIncrement = displayDeletionFound(increment, targetId, foundIncrement);
                     break;
                 default:
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
index f7d34ac..e20818c 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
@@ -46,7 +46,7 @@
     const auto& display = getCurrentDisplayState(displayToken);
     EXPECT_TRUE(display.isVirtual());
     EXPECT_FALSE(display.isSecure);
-    EXPECT_EQ(name.string(), display.displayName);
+    EXPECT_EQ(name.c_str(), display.displayName);
 
     // --------------------------------------------------------------------
     // Cleanup conditions
@@ -81,7 +81,7 @@
     const auto& display = getCurrentDisplayState(displayToken);
     EXPECT_TRUE(display.isVirtual());
     EXPECT_TRUE(display.isSecure);
-    EXPECT_EQ(name.string(), display.displayName);
+    EXPECT_EQ(name.c_str(), display.displayName);
 
     // --------------------------------------------------------------------
     // Cleanup conditions
diff --git a/services/surfaceflinger/tests/utils/ScreenshotUtils.h b/services/surfaceflinger/tests/utils/ScreenshotUtils.h
index f879430..b75cf08 100644
--- a/services/surfaceflinger/tests/utils/ScreenshotUtils.h
+++ b/services/surfaceflinger/tests/utils/ScreenshotUtils.h
@@ -161,7 +161,7 @@
             String8 err(String8::format("pixel @ (%3d, %3d): "
                                         "expected [%3d, %3d, %3d], got [%3d, %3d, %3d]",
                                         x, y, r, g, b, pixel[0], pixel[1], pixel[2]));
-            EXPECT_EQ(String8(), err) << err.string();
+            EXPECT_EQ(String8(), err) << err.c_str();
         }
     }