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-rw-r--r--src/heightmap.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/heightmap.cpp b/src/heightmap.cpp
index 36e962dde..04207cd2e 100644
--- a/src/heightmap.cpp
+++ b/src/heightmap.cpp
@@ -352,7 +352,7 @@ static void GrayscaleToMapHeights(uint img_width, uint img_height, byte *map)
* This function takes care of the fact that land in OpenTTD can never differ
* more than 1 in height
*/
-static void FixSlopes()
+void FixSlopes()
{
uint width, height;
int row, col;