diff --git a/dom/canvas/WebGL2Context.cpp b/dom/canvas/WebGL2Context.cpp
index 8bc8bb2945d6..f842bf97b6cd 100644
--- a/dom/canvas/WebGL2Context.cpp
+++ b/dom/canvas/WebGL2Context.cpp
@@ -10,6 +10,7 @@
 #include "mozilla/dom/WebGL2RenderingContextBinding.h"
 #include "mozilla/ArrayUtils.h"
 #include "mozilla/Telemetry.h"
+#include "nsPrintfCString.h"
 #include "WebGLBuffer.h"
 #include "WebGLFormats.h"
 #include "WebGLTransformFeedback.h"