diff --git a/libs/hwui/apex/jni_runtime.cpp b/libs/hwui/apex/jni_runtime.cpp
index f57d80c..c509ed4 100644
--- a/libs/hwui/apex/jni_runtime.cpp
+++ b/libs/hwui/apex/jni_runtime.cpp
@@ -55,6 +55,7 @@
 extern int register_android_graphics_ColorSpace(JNIEnv* env);
 extern int register_android_graphics_DrawFilter(JNIEnv* env);
 extern int register_android_graphics_FontFamily(JNIEnv* env);
+extern int register_android_graphics_Gainmap(JNIEnv* env);
 extern int register_android_graphics_HardwareRendererObserver(JNIEnv* env);
 extern int register_android_graphics_Matrix(JNIEnv* env);
 extern int register_android_graphics_Paint(JNIEnv* env);
@@ -114,6 +115,7 @@
             REG_JNI(register_android_graphics_ColorFilter),
             REG_JNI(register_android_graphics_DrawFilter),
             REG_JNI(register_android_graphics_FontFamily),
+            REG_JNI(register_android_graphics_Gainmap),
             REG_JNI(register_android_graphics_HardwareRendererObserver),
             REG_JNI(register_android_graphics_ImageDecoder),
             REG_JNI(register_android_graphics_drawable_AnimatedImageDrawable),