diff --git a/src/main/java/org/apache/maven/shared/io/location/URLLocation.java b/src/main/java/org/apache/maven/shared/io/location/URLLocation.java
index ae9d645..4a2d839 100644
--- a/src/main/java/org/apache/maven/shared/io/location/URLLocation.java
+++ b/src/main/java/org/apache/maven/shared/io/location/URLLocation.java
@@ -58,7 +58,9 @@ public URLLocation(
     /** {@inheritDoc} */
     protected void initFile() throws IOException {
         if (unsafeGetFile() == null) {
-            File tempFile = Files.createTempFile(tempFilePrefix, tempFileSuffix).toFile();
+            String prefix = (tempFilePrefix == null) ? "url" : tempFilePrefix;
+            String suffix = (tempFileSuffix == null) ? ".tmp" : tempFileSuffix;
+            File tempFile = Files.createTempFile(prefix, suffix).toFile();
 
             if (tempFileDeleteOnExit) {
                 tempFile.deleteOnExit();