diff --git a/courses/databases_nosql/key_concepts.md b/courses/databases_nosql/key_concepts.md
index 0dfa7ea..3cf5d72 100644
--- a/courses/databases_nosql/key_concepts.md
+++ b/courses/databases_nosql/key_concepts.md
@@ -34,10 +34,10 @@ When data is distributed across nodes, it can be modified on different nodes at
 
     
 
-<p id="gdcalert1" ><span style="color: red; font-weight: bold" images\vector_clocks.png> </span><br>(<a href="#">Back to top</a>)(<a href="#gdcalert2">Next alert</a>)<br><span style="color: red; font-weight: bold">>>>>> </span></p>
+<p id="gdcalert1" ><span style="color: red; font-weight: bold" images/vector_clocks.png> </span><br>(<a href="#">Back to top</a>)(<a href="#gdcalert2">Next alert</a>)<br><span style="color: red; font-weight: bold">>>>>> </span></p>
 
 
-![alt_text](images\vector_clocks.png "Vector Clocks")
+![alt_text](images/vector_clocks.png "Vector Clocks")