diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index 9bf13e66d..604a66907 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -11103,7 +11103,7 @@ interface WebGLRenderingContext {
     isTexture(texture: WebGLTexture | null): boolean;
     lineWidth(width: number): void;
     linkProgram(program: WebGLProgram | null): void;
-    pixelStorei(pname: number, param: number): void;
+    pixelStorei(pname: number, param: number | boolean): void;
     polygonOffset(factor: number, units: number): void;
     readPixels(x: number, y: number, width: number, height: number, format: number, type: number, pixels: ArrayBufferView | null): void;
     renderbufferStorage(target: number, internalformat: number, width: number, height: number): void;
diff --git a/inputfiles/overridingTypes.json b/inputfiles/overridingTypes.json
index b20e7e33f..afc098f28 100644
--- a/inputfiles/overridingTypes.json
+++ b/inputfiles/overridingTypes.json
@@ -58,6 +58,12 @@
             "texImage2D(target: number, level: number, internalformat: number, format: number, type: number, pixels?: ImageData | HTMLVideoElement | HTMLImageElement | HTMLCanvasElement): void"
         ]
     },
+    {
+        "kind": "method",
+        "interface": "WebGLRenderingContext",
+        "name": "pixelStorei",
+        "signatures": ["pixelStorei(pname: number, param: number | boolean): void"]
+    },
     {
         "kind": "method",
         "interface": "XMLHttpRequest",