diff --git a/libs/gfx/include/psemek/gfx/attribs.hpp b/libs/gfx/include/psemek/gfx/attribs.hpp
index 1ffce06e..a458882e 100644
--- a/libs/gfx/include/psemek/gfx/attribs.hpp
+++ b/libs/gfx/include/psemek/gfx/attribs.hpp
@@ -436,10 +436,11 @@ namespace psemek::gfx
 		{
 			gl::EnableVertexAttribArray(a.index);
 			gl::VertexAttribDivisor(a.index, a.divisor);
+			GLuint stride = (a.divisor == 0) ? attribs.vertex_size : attribs.instance_size;
 			if (a.integer)
-				gl::VertexAttribIPointer(a.index, a.size, a.type, attribs.vertex_size, a.pointer);
+				gl::VertexAttribIPointer(a.index, a.size, a.type, stride, a.pointer);
 			else
-				gl::VertexAttribPointer(a.index, a.size, a.type, a.normalized, attribs.vertex_size, a.pointer);
+				gl::VertexAttribPointer(a.index, a.size, a.type, a.normalized, stride, a.pointer);
 		}
 	}