diff --git a/Practical/Practical Exam/PL-SQL/P4 - PL-SQL Block.md b/Practical/Practical Exam/PL-SQL/P4 - PL-SQL Block.md
index 4cef835..79eb276 100644
--- a/Practical/Practical Exam/PL-SQL/P4 - PL-SQL Block.md	
+++ b/Practical/Practical Exam/PL-SQL/P4 - PL-SQL Block.md	
@@ -55,7 +55,7 @@ EXCEPTION
     WHEN nodata THEN
         DBMS_OUTPUT.PUT_LINE('Please enter a valid roll number.');
 		WHEN OTHERS THEN
-				DBMS_OUTPUT.PUT_LINE('Error occured. Error: ' SQLERRM);
+	      DBMS_OUTPUT.PUT_LINE('Error occured. Error: ' || SQLERRM);
 END;
 /