diff --git a/code/STLLoader.h b/code/STLLoader.h
index ff7b32a15..c51604861 100644
--- a/code/STLLoader.h
+++ b/code/STLLoader.h
@@ -49,7 +49,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/types.h>
 
 // Forward declarations
-class aiNode;
+struct aiNode;
 
 namespace Assimp {