diff --git a/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/classpath/ClassPathFolders.java b/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/classpath/ClassPathFolders.java
index 39c0906626..1bddbded4f 100644
--- a/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/classpath/ClassPathFolders.java
+++ b/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/classpath/ClassPathFolders.java
@@ -60,7 +60,7 @@ public class ClassPathFolders implements Iterable<File> {
 			}
 			catch (Exception ex) {
 				logger.warn(LogMessage.format("Unable to get classpath URL %s", url));
-				logger.trace(LogMessage.format("Unable to get classpath URL ", url), ex);
+				logger.trace(LogMessage.format("Unable to get classpath URL %s", url), ex);
 			}
 		}
 	}