diff --git a/src/cam/sdl_texture.h b/src/cam/sdl_texture.h
index 1d8b09288d50..f523fa5ebf51 100644
--- a/src/cam/sdl_texture.h
+++ b/src/cam/sdl_texture.h
@@ -17,7 +17,7 @@ public:
 	SDLTexture(const SDL_Rect &rect, uint32_t pixelFormat, const int pitch);
 	virtual ~SDLTexture();
 	int create(SDL_Renderer *renderer);
-	virtual void update(const libcamera::Span<uint8_t> &data) = 0;
+	virtual void update(libcamera::Span<const uint8_t> data) = 0;
 	SDL_Texture *get() const { return ptr_; }
 
 protected:
diff --git a/src/cam/sdl_texture_mjpg.cpp b/src/cam/sdl_texture_mjpg.cpp
index 7eddc00cd210..7542efd75d96 100644
--- a/src/cam/sdl_texture_mjpg.cpp
+++ b/src/cam/sdl_texture_mjpg.cpp
@@ -43,7 +43,7 @@ SDLTextureMJPG::SDLTextureMJPG(const SDL_Rect &rect)
 {
 }
 
-int SDLTextureMJPG::decompress(const Span<uint8_t> &data)
+int SDLTextureMJPG::decompress(Span<const uint8_t> data)
 {
 	struct jpeg_decompress_struct cinfo;
 
@@ -76,7 +76,7 @@ int SDLTextureMJPG::decompress(const Span<uint8_t> &data)
 	return 0;
 }
 
-void SDLTextureMJPG::update(const Span<uint8_t> &data)
+void SDLTextureMJPG::update(Span<const uint8_t> data)
 {
 	decompress(data);
 	SDL_UpdateTexture(ptr_, nullptr, rgb_.get(), pitch_);
diff --git a/src/cam/sdl_texture_mjpg.h b/src/cam/sdl_texture_mjpg.h
index 328c45a913c5..5141ed73bf70 100644
--- a/src/cam/sdl_texture_mjpg.h
+++ b/src/cam/sdl_texture_mjpg.h
@@ -14,10 +14,10 @@ class SDLTextureMJPG : public SDLTexture
 public:
 	SDLTextureMJPG(const SDL_Rect &rect);
 
-	void update(const libcamera::Span<uint8_t> &data) override;
+	void update(libcamera::Span<const uint8_t> data) override;
 
 private:
-	int decompress(const libcamera::Span<uint8_t> &data);
+	int decompress(libcamera::Span<const uint8_t> data);
 
 	std::unique_ptr<unsigned char[]> rgb_;
 };
diff --git a/src/cam/sdl_texture_yuyv.cpp b/src/cam/sdl_texture_yuyv.cpp
index cc161b2cfa79..637c0900edff 100644
--- a/src/cam/sdl_texture_yuyv.cpp
+++ b/src/cam/sdl_texture_yuyv.cpp
@@ -14,7 +14,7 @@ SDLTextureYUYV::SDLTextureYUYV(const SDL_Rect &rect)
 {
 }
 
-void SDLTextureYUYV::update(const Span<uint8_t> &data)
+void SDLTextureYUYV::update(Span<const uint8_t> data)
 {
 	SDL_UpdateTexture(ptr_, &rect_, data.data(), pitch_);
 }
diff --git a/src/cam/sdl_texture_yuyv.h b/src/cam/sdl_texture_yuyv.h
index 9f7c72f09db2..529a72d6a40e 100644
--- a/src/cam/sdl_texture_yuyv.h
+++ b/src/cam/sdl_texture_yuyv.h
@@ -13,5 +13,5 @@ class SDLTextureYUYV : public SDLTexture
 {
 public:
 	SDLTextureYUYV(const SDL_Rect &rect);
-	void update(const libcamera::Span<uint8_t> &data) override;
+	void update(libcamera::Span<const uint8_t> data) override;
 };