diff --git a/gfx/2d/DrawTargetCG.cpp b/gfx/2d/DrawTargetCG.cpp
index 00f5167f9ac..4311a6c5ba4 100644
--- a/gfx/2d/DrawTargetCG.cpp
+++ b/gfx/2d/DrawTargetCG.cpp
@@ -1034,6 +1034,7 @@ DrawTargetCG::Init(CGContextRef cgContext, const IntSize &aSize)
   mSize = aSize;
 
   mCg = cgContext;
+  CGContextRetain(mCg);
 
   mData = nullptr;