diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index 4d090b9..d12bb85 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -49,6 +49,13 @@
             "problemMatcher": [],
             "group": "build"
         },
+        {
+            "label": "run-app-sdl-dbg",
+            "type": "shell",
+            "command": "make run-app config=dbg sdl=true",
+            "problemMatcher": [],
+            "group": "build"
+        },
         {
             "label": "run-app-dbg-ogles2",
             "type": "shell",
diff --git a/tests/app/makefile b/tests/app/makefile
index 74ed7ea..f95a952 100644
--- a/tests/app/makefile
+++ b/tests/app/makefile
@@ -10,7 +10,15 @@ this_srcs += $(call prorab-src-dir, src)
 this_cxxflags += -I ../../src
 
 ifeq ($(os),linux)
-    this__cfg_suffix := $(if $(ogles2),opengles,opengl)-$(if $(wayland),wayland,xorg)
+    ifeq ($(wayland),true)
+        this__backend := wayland
+    else ifeq ($(sdl),true)
+        this__backend := sdl
+    else
+        this__backend := xorg
+    endif
+
+    this__cfg_suffix := $(if $(ogles2),opengles,opengl)-$(this__backend)
     this_libruisapp := libruisapp-$(this__cfg_suffix)
 else
     this__cfg_suffix := $(if $(ogles2),opengles,opengl)