diff --git a/src/java/org/apache/commons/logging/impl/LogFactoryImpl.java b/src/java/org/apache/commons/logging/impl/LogFactoryImpl.java
index 1569381..27579e9 100644
--- a/src/java/org/apache/commons/logging/impl/LogFactoryImpl.java
+++ b/src/java/org/apache/commons/logging/impl/LogFactoryImpl.java
@@ -715,8 +715,8 @@ public class LogFactoryImpl extends LogFactory {
                                         true);
             if (result == null) {
                 throw new LogConfigurationException(
-                        "User-specified log class " + specifiedLogClassName
-                        + " cannot be found or is not useable.");
+                        "User-specified log class '" + specifiedLogClassName
+                        + "' cannot be found or is not useable.");
             }
             
             return result;