diff --git a/app/core/src/main/java/stirling/software/SPDF/SPDFApplication.java b/app/core/src/main/java/stirling/software/SPDF/SPDFApplication.java
index b0ccbfbf6e..61cd71b544 100644
--- a/app/core/src/main/java/stirling/software/SPDF/SPDFApplication.java
+++ b/app/core/src/main/java/stirling/software/SPDF/SPDFApplication.java
@@ -9,6 +9,7 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Properties;
+import java.util.regex.Pattern;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;