diff --git a/source/renderer/InstancingModelRenderer.cpp b/source/renderer/InstancingModelRenderer.cpp
index e96c3491d5..aa4c130c04 100644
--- a/source/renderer/InstancingModelRenderer.cpp
+++ b/source/renderer/InstancingModelRenderer.cpp
@@ -379,7 +379,7 @@ void InstancingModelRenderer::RenderModel(const CShaderProgramPtr& shader, int U
 #if CONFIG2_GLES
 		glDrawElements(GL_TRIANGLES, (GLsizei)numFaces*3, GL_UNSIGNED_SHORT, m->imodeldefIndexBase);
 #else
-		pglDrawRangeElementsEXT(GL_TRIANGLES, 0, (GLuint)mdldef->GetNumVertices()-1,
+		pglDrawRangeElementsEXT(GL_TRIANGLES, 0, (GLuint)m->imodeldef->m_Array.GetNumVertices()-1,
 				(GLsizei)numFaces*3, GL_UNSIGNED_SHORT, m->imodeldefIndexBase);
 #endif
 	}