diff --git a/assets/themes/advertising/advertising.json b/assets/themes/advertising/advertising.json
index 86d9c58f2..0780f64f1 100644
--- a/assets/themes/advertising/advertising.json
+++ b/assets/themes/advertising/advertising.json
@@ -905,9 +905,9 @@
             "es": "Las vallas publicitarias normalment son de gran tamanó y están situadas cerca de las carreteras"
           },
           "exampleImages": [
-            "./assets/themes/advertising/KFC_Billboard.jpg",
-            "./assets/themes/advertising/LIDL_Billboard.jpg",
-            "./assets/themes/advertising/Repsol_Billboard.jpg"
+            "./assets/themes/advertising/kfc_billboard.jpg",
+            "./assets/themes/advertising/lidl_billboard.jpg",
+            "./assets/themes/advertising/repsol_billboard.jpg"
           ]
         },
         {
@@ -925,9 +925,9 @@
             "ca": "Un xicotet tauló d'anuncics per a anuncis del veïnat, normalment destitat a peatons"
           },
           "exampleImages": [
-            "./assets/themes/advertising/local_Board.jpg",
-            "./assets/themes/advertising/FGV_Founding.jpg",
-            "./assets/themes/advertising/Small_Board.jpg"
+            "./assets/themes/advertising/local_board.jpg",
+            "./assets/themes/advertising/fgv_founding.jpg",
+            "./assets/themes/advertising/small_board.jpg"
           ]
         },
         {
diff --git a/assets/themes/advertising/license_info.json b/assets/themes/advertising/license_info.json
index c2ab1efe3..daacddf90 100644
--- a/assets/themes/advertising/license_info.json
+++ b/assets/themes/advertising/license_info.json
@@ -70,7 +70,7 @@
     ]
   },
   {
-    "path": "KFC_Billboard.jpg",
+    "path": "kfc_billboard.jpg",
     "license": "CC BY 4.0",
     "authors": [
       "Paunofu"
@@ -90,7 +90,7 @@
     ]
   },
   {
-    "path": "Repsol_Billboard.jpg",
+    "path": "repsol_billboard.jpg",
     "license": "CC BY 4.0",
     "authors": [
       "Paunofu"
@@ -100,7 +100,7 @@
     ]
   },
   {
-    "path": "local_Board.jpg",
+    "path": "local_board.jpg",
     "license": "CC-BY-SA 4.0",
     "authors": [
       "Segnargsed"
@@ -110,7 +110,7 @@
     ]
   },
   {
-    "path": "FGV_Founding.jpg",
+    "path": "fgv_founding.jpg",
     "license": "CC BY-SA 4.0",
     "authors": [
       "Paunofu"
@@ -120,7 +120,7 @@
     ]
   },
   {
-    "path": "Small_Board.jpg",
+    "path": "small_board.jpg",
     "license": "CC BY-SA 4.0",
     "authors": [
       "Segnargsed"