1 files changed, 2 insertions, 2 deletions
diff --git a/src/mbgl/util/offscreen_texture.cpp b/src/mbgl/util/offscreen_texture.cpp
index cbe33c8d58..56ef60b15c 100644
--- a/src/mbgl/util/offscreen_texture.cpp
+++ b/src/mbgl/util/offscreen_texture.cpp
@@ -9,7 +9,7 @@ namespace mbgl {
 class OffscreenTexture::Impl {
 public:
     Impl(gl::Context& context_, const Size size_) : context(context_), size(std::move(size_)) {
-        assert(size);
+        assert(!size.isEmpty());
     }
 
     void bind() {
@@ -45,7 +45,7 @@ private:
 
 OffscreenTexture::OffscreenTexture(gl::Context& context, const Size size)
     : impl(std::make_unique<Impl>(context, std::move(size))) {
-    assert(size);
+    assert(!size.isEmpty());
 }
 
 OffscreenTexture::~OffscreenTexture() = default;