diff --git a/README.md b/README.md
index bf4b29b..575eabb 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,6 @@ a-d: egv.m, defl.m, solveODE.m
 
 e.
 
-![NEW BEAM POSITION!!](Plot4.PNG)
+![NEW BEAM POSITION!!](Plot4.png)
 
 note: We couldn't analytically solve for the initial conditions for the first and third derivatives (or they were not given), so this is what we got.