diff --git a/src/sksl/SkSLCPPCodeGenerator.h b/src/sksl/SkSLCPPCodeGenerator.h
index 6727b9c..ea4d030 100644
--- a/src/sksl/SkSLCPPCodeGenerator.h
+++ b/src/sksl/SkSLCPPCodeGenerator.h
@@ -68,6 +68,8 @@
 
     void writePrivateVarValues();
 
+    void writeCodeAppend(const String& code);
+
     bool writeEmitCode(std::vector<const Variable*>& uniforms);
 
     void writeSetData(std::vector<const Variable*>& uniforms);