diff --git a/src/plugins/projectexplorer/debugginghelper.cpp b/src/plugins/projectexplorer/debugginghelper.cpp
index 6c39e7376d8acc829be26e7f1d69866087b868bf..61c5b4538d1a19a8b778a729afbfaa7bd4b48e22 100644
--- a/src/plugins/projectexplorer/debugginghelper.cpp
+++ b/src/plugins/projectexplorer/debugginghelper.cpp
@@ -106,7 +106,7 @@ QString DebuggingHelperLibrary::debuggingHelperLibraryByInstallData(const QStrin
 
     foreach(const QString &directory, debuggingHelperLibraryDirectories(qtInstallData)) {
         const QFileInfo fi(helperFilePath(directory));
-        if (fi.exists() && fi.lastModified() > lastModified)
+        if (fi.exists() && fi.lastModified() >= lastModified)
             return fi.filePath();
     }
     return QString();