diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/platform/SystemUtils.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/platform/SystemUtils.java
index 8b28268cb..5f7faaf84 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/platform/SystemUtils.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/platform/SystemUtils.java
@@ -96,7 +96,7 @@ public final class SystemUtils {
                     Lang.wrap(() -> convert.apply(inputStream)),
                     Schedulers.io());
 
-            if (SystemUtils.waitFor(process, 15, TimeUnit.SECONDS))
+            if (!SystemUtils.waitFor(process, 15, TimeUnit.SECONDS))
                 throw new TimeoutException();
 
             if (process.exitValue() != 0)