diff --git a/PDE/ThermalDiffusion/CentralSecondOrder.mo b/PDE/ThermalDiffusion/CentralSecondOrder.mo
index 19a72505421cfe0ce7adb41c7e846cf30ad83b94..4c9caeb978a0895d9ffc2a853ae62eb74c470a7c 100644
--- a/PDE/ThermalDiffusion/CentralSecondOrder.mo
+++ b/PDE/ThermalDiffusion/CentralSecondOrder.mo
@@ -76,7 +76,7 @@ equation
       </p>        
 
       <img 
-        src=\"modelica://TAeZoSysPro/Information/PDE/ThermalDiffusion/Eq_spaceDerivative.png\" 
+        src=\"modelica://TAeZoSysPro/Information/PDE/ThermalDiffusion/EQ_spaceDerivative.png\" 
       />
 			
       <p>
@@ -86,7 +86,7 @@ equation
       </p>
       
       <img 
-        src=\"modelica://TAeZoSysPro/Information/PDE/ThermalDiffusion/Eq_central.png\" 
+        src=\"modelica://TAeZoSysPro/Information/PDE/ThermalDiffusion/EQ_central.png\" 
       />
       
       <p>