diff --git a/qrenderdoc/Windows/TextureViewer.cpp b/qrenderdoc/Windows/TextureViewer.cpp
index c1827bb19..6466a29aa 100644
--- a/qrenderdoc/Windows/TextureViewer.cpp
+++ b/qrenderdoc/Windows/TextureViewer.cpp
@@ -3166,7 +3166,7 @@ void TextureViewer::on_mipLevel_currentIndexChanged(int index)
     ui->sliceFace->clear();
 
     for(uint32_t i = 0; i < numSlices; i++)
-      ui->sliceFace->addItem(tr("Slice ") + i);
+      ui->sliceFace->addItem(tr("Slice %1").arg(i));
 
     // changing sliceFace index will handle updating range & re-picking
     ui->sliceFace->setCurrentIndex((int)qBound(0U, newSlice, numSlices - 1));