diff --git a/libs/graphicsenv/GraphicsEnv.cpp b/libs/graphicsenv/GraphicsEnv.cpp
index c2a6764..dfdda0c 100644
--- a/libs/graphicsenv/GraphicsEnv.cpp
+++ b/libs/graphicsenv/GraphicsEnv.cpp
@@ -135,8 +135,8 @@
 }
 
 void GraphicsEnv::setAngleInfo(const std::string path, const std::string appName,
-                               bool developerOptIn, const int rulesFd, const long rulesOffset,
-                               const long rulesLength) {
+                               const std::string developerOptIn, const int rulesFd,
+                               const long rulesOffset, const long rulesLength) {
     if (!mAnglePath.empty()) {
         ALOGV("ignoring attempt to change ANGLE path from '%s' to '%s'", mAnglePath.c_str(),
               path.c_str());
@@ -153,7 +153,13 @@
         mAngleAppName = appName;
     }
 
-    mAngleDeveloperOptIn = developerOptIn;
+    if (!mAngleDeveloperOptIn.empty()) {
+        ALOGV("ignoring attempt to change ANGLE application opt-in from '%s' to '%s'",
+              mAngleDeveloperOptIn.c_str(), developerOptIn.c_str());
+    } else {
+        ALOGV("setting ANGLE application opt-in to '%s'", developerOptIn.c_str());
+        mAngleDeveloperOptIn = developerOptIn;
+    }
 
     ALOGV("setting ANGLE rules file descriptor to '%i'", rulesFd);
     mAngleRulesFd = rulesFd;
@@ -182,8 +188,8 @@
     return mAngleAppName.c_str();
 }
 
-bool GraphicsEnv::getAngleDeveloperOptIn() {
-    return mAngleDeveloperOptIn;
+const char* GraphicsEnv::getAngleDeveloperOptIn() {
+    return mAngleDeveloperOptIn.c_str();
 }
 
 int GraphicsEnv::getAngleRulesFd() {
diff --git a/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h b/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h
index 20e4d66..4ec53f1 100644
--- a/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h
+++ b/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h
@@ -44,12 +44,12 @@
     // (libraries must be stored uncompressed and page aligned); such elements
     // in the search path must have a '!' after the zip filename, e.g.
     //     /system/app/ANGLEPrebuilt/ANGLEPrebuilt.apk!/lib/arm64-v8a
-    void setAngleInfo(const std::string path, const std::string appName, bool devOptIn,
+    void setAngleInfo(const std::string path, const std::string appName, std::string devOptIn,
                       const int rulesFd, const long rulesOffset, const long rulesLength);
     android_namespace_t* getAngleNamespace();
     const char* getAngleAppName();
     const char* getAngleAppPref();
-    bool getAngleDeveloperOptIn();
+    const char* getAngleDeveloperOptIn();
     int getAngleRulesFd();
     long getAngleRulesOffset();
     long getAngleRulesLength();
@@ -69,7 +69,7 @@
     std::string mDriverPath;
     std::string mAnglePath;
     std::string mAngleAppName;
-    bool mAngleDeveloperOptIn;
+    std::string mAngleDeveloperOptIn;
     int mAngleRulesFd;
     long mAngleRulesOffset;
     long mAngleRulesLength;