diff --git a/src/main/java/rife/bld/extension/AbstractJReleaserOperation.java b/src/main/java/rife/bld/extension/AbstractJReleaserOperation.java
index 61c2095..be46ac9 100644
--- a/src/main/java/rife/bld/extension/AbstractJReleaserOperation.java
+++ b/src/main/java/rife/bld/extension/AbstractJReleaserOperation.java
@@ -131,9 +131,10 @@ public abstract class AbstractJReleaserOperation<S extends AbstractJReleaserOper
         if (project_ != null) {
             args.add(javaTool());
             args.add("-cp");
-            args.add(String.format("%s:%s:%s:%s:%s", new File(project_.libTestDirectory(), "*"),
-                    new File(project_.libCompileDirectory(), "*"), new File(project_.libProvidedDirectory(), "*"),
-                    project_.buildMainDirectory(), project_.buildTestDirectory()));
+            args.add(String.format("%s%s%s%s%s%s%s%s%s", new File(project_.libTestDirectory(), "*"),
+                    File.pathSeparator, new File(project_.libCompileDirectory(), "*"), File.pathSeparator,
+                    new File(project_.libProvidedDirectory(), "*"), File.pathSeparator, project_.buildMainDirectory(),
+                    File.pathSeparator, project_.buildTestDirectory()));
             args.add("org.jreleaser.cli.Main");
             args.add(getCommand());
 
@@ -146,6 +147,10 @@ public abstract class AbstractJReleaserOperation<S extends AbstractJReleaserOper
             });
         }
 
+        if (LOGGER.isLoggable(Level.FINE)) {
+            LOGGER.fine(String.join(" ", args));
+        }
+
         return args;
     }