diff --git a/src/openrct2/world/Footpath.cpp b/src/openrct2/world/Footpath.cpp
index dc7ffe7554..07c40db936 100644
--- a/src/openrct2/world/Footpath.cpp
+++ b/src/openrct2/world/Footpath.cpp
@@ -173,7 +173,7 @@ money64 FootpathProvisionalSet(
             VirtualFloorSetHeight(0);
         }
         else if (
-            gFootpathConstructSlope == kTileSlopeFlat || gProvisionalFootpath.Position.z < gFootpathConstructFromPosition.z)
+            gProvisionalFootpath.Slope == kTileSlopeFlat || gProvisionalFootpath.Position.z < gFootpathConstructFromPosition.z)
         {
             // Going either straight on, or down.
             VirtualFloorSetHeight(gProvisionalFootpath.Position.z);