diff --git a/pkgs/games/rigsofrods/doubleslash.patch b/pkgs/games/rigsofrods/doubleslash.patch
new file mode 100644
index 000000000000..c62c5470dfc7
--- /dev/null
+++ b/pkgs/games/rigsofrods/doubleslash.patch
@@ -0,0 +1,13 @@
+diff --git a/CMakeDependenciesConfig.txt b/CMakeDependenciesConfig.txt
+index 447a440..e2562de 100644
+--- a/CMakeDependenciesConfig.txt
++++ b/CMakeDependenciesConfig.txt
+@@ -228,7 +228,7 @@ ELSEIF(UNIX)
+    # Paged Geometry
+    find_path(PAGED_INCLUDE_DIRS "PagedGeometry/PagedGeometry.h")
+    if(PAGED_INCLUDE_DIRS)
+-      set(PAGED_INCLUDE_DIRS "${PAGED_INCLUDE_DIRS};/${PAGED_INCLUDE_DIRS}/PagedGeometry")
++      set(PAGED_INCLUDE_DIRS "${PAGED_INCLUDE_DIRS};${PAGED_INCLUDE_DIRS}/PagedGeometry")
+       find_library(PAGED_LIBRARIES "PagedGeometry")
+       set(ROR_USE_PAGED ON)
+    else()