diff --git a/gio-qt/dgiofile.cpp b/gio-qt/dgiofile.cpp
index ad8dfa8..d845d92 100644
--- a/gio-qt/dgiofile.cpp
+++ b/gio-qt/dgiofile.cpp
@@ -50,7 +50,7 @@ DGioFile::DGioFile(File* gmmFilePtr, QObject *parent)
     : QObject(parent)
     , d_ptr(new DGioFilePrivate(this, gmmFilePtr))
 {
-    // gmountPtr must be vaild;
+    // gmountPtr must be valid;
     Q_CHECK_PTR(gmmFilePtr);
 }
 
@@ -95,7 +95,7 @@ DGioFile *DGioFile::createFromUri(QString uri, QObject *parent)
     // ensure GIO got initialized
     Gio::init();
 
-    // File::create_for_path never falls.
+    // File::create_for_uri never falls.
     Glib::RefPtr<File> gmmFile = File::create_for_uri(uri.toStdString());
 
     return new DGioFile(gmmFile.release(), parent);
diff --git a/gio-qt/dgiomount.cpp b/gio-qt/dgiomount.cpp
index 8b095b3..725c707 100644
--- a/gio-qt/dgiomount.cpp
+++ b/gio-qt/dgiomount.cpp
@@ -61,7 +61,7 @@ DGioMount::DGioMount(Mount* gmmMountPtr, QObject *parent)
     : QObject(parent)
     , d_ptr(new DGioMountPrivate(this, gmmMountPtr))
 {
-    // gmountPtr must be vaild;
+    // gmountPtr must be valid;
     Q_CHECK_PTR(gmmMountPtr);
 }
 
diff --git a/gio-qt/dgiovolume.cpp b/gio-qt/dgiovolume.cpp
index 4a4f54f..c70c144 100644
--- a/gio-qt/dgiovolume.cpp
+++ b/gio-qt/dgiovolume.cpp
@@ -48,7 +48,7 @@ DGioVolume::DGioVolume(Volume* gmmVolumePtr, QObject *parent)
     : QObject(parent)
     , d_ptr(new DGioVolumePrivate(this, gmmVolumePtr))
 {
-    // gvolumePtr must be vaild;
+    // gvolumePtr must be valid;
     Q_CHECK_PTR(gmmVolumePtr);
 }