diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7fe797327..83304b494 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1321,7 +1321,7 @@ set(EXPECTED_DATA
   skins/whis.png
   skins/x_ninja.png
   skins/x_spec.png
-  strongweak.png
+  strong_weak.png
   themes/auto.png
   themes/autumn.png
   themes/autumn_day.map
diff --git a/data/strongweak.png b/data/strong_weak.png
similarity index 100%
rename from data/strongweak.png
rename to data/strong_weak.png
diff --git a/datasrc/content.py b/datasrc/content.py
index 68ae797f7..8b40d84a0 100644
--- a/datasrc/content.py
+++ b/datasrc/content.py
@@ -238,7 +238,7 @@ image_guiicons = Image("guiicons", "gui_icons.png")
 image_arrow = Image("arrow", "arrow.png")
 image_demobuttons2 = Image("demobuttons2", "demo_buttons2.png")
 image_audio_source = Image("audio_source", "editor/audio_source.png")
-image_strongweak = Image("strongweak", "strongweak.png")
+image_strongweak = Image("strongweak", "strong_weak.png")
 
 container.images.Add(image_null)
 container.images.Add(image_game)