diff --git a/sdl/surface.c b/sdl/surface.c
index 27443885..d03e9dd8 100644
--- a/sdl/surface.c
+++ b/sdl/surface.c
@@ -712,12 +712,17 @@ static SDL_Surface* image_to_surface(JSContext *js, JSValue img_obj)
   JSValue pixels_val = JS_GetPropertyStr(js, img_obj, "pixels");
   size_t pixel_len;
   void *pixel_data = js_get_blob_data(js, &pixel_len, pixels_val, &pixel_data);
-  
-  if (blob_result == -1 || blob_result == 0 || !pixel_data) {
+
+  if (pixel_data == -1) {
     JS_FreeValue(js, pixels_val);
     return NULL;
   }
   
+  if (!pixel_data) {
+    JS_FreeValue(js, pixels_val);
+    return JS_ThrowInternalError(js, "blob was size zero");
+  }
+  
   // Get pitch (optional)
   int pitch;
   JSValue pitch_val = JS_GetPropertyStr(js, img_obj, "pitch");
@@ -947,19 +952,13 @@ JSC_CCALL(surface_convert_generic,
   // Get source pixels
   JSValue src_pixels_val = JS_GetPropertyStr(js, argv[0], "pixels");
   size_t src_len;
-  void *src_pixels;
-  int blob_result = js_get_blob_data(js, &src_len, src_pixels_val, &src_pixels);
+  void *src_pixels = js_get_blob_data(js, &src_len, src_pixels_val);
   
-  if (blob_result == -1) {
+  if (src_pixels == -1) {
     JS_FreeValue(js, src_pixels_val);
     return JS_EXCEPTION;
   }
   
-  if (blob_result == 0 || !src_pixels) {
-    JS_FreeValue(js, src_pixels_val);
-    return JS_ThrowTypeError(js, "source pixels must be an ArrayBuffer");
-  }
-  
   // Get source pitch (optional, calculate if not provided)
   int src_pitch;
   JSValue src_pitch_val = JS_GetPropertyStr(js, argv[0], "pitch");