diff --git a/src/citra_qt/debugger/graphics_cmdlists.cpp b/src/citra_qt/debugger/graphics_cmdlists.cpp
index cabf5fe07..da19edef0 100644
--- a/src/citra_qt/debugger/graphics_cmdlists.cpp
+++ b/src/citra_qt/debugger/graphics_cmdlists.cpp
@@ -74,7 +74,7 @@ TextureInfoDockWidget::TextureInfoDockWidget(const Pica::DebugUtils::TextureInfo
     format_choice->addItem(tr("I8"));
     format_choice->addItem(tr("A8"));
     format_choice->addItem(tr("IA4"));
-    format_choice->addItem(tr("UNK10"));
+    format_choice->addItem(tr("I4"));
     format_choice->addItem(tr("A4"));
     format_choice->addItem(tr("ETC1"));
     format_choice->addItem(tr("ETC1A4"));
diff --git a/src/video_core/pica.h b/src/video_core/pica.h
index 026b10a62..5d0d2bf98 100644
--- a/src/video_core/pica.h
+++ b/src/video_core/pica.h
@@ -200,6 +200,7 @@ struct Regs {
         case TextureFormat::IA8:
             return 4;
 
+        case TextureFormat::I4:
         case TextureFormat::A4:
             return 1;