diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8f8981ee..8f6d240a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -148,17 +148,20 @@ foreach (resource_file ${RESOURCE_FILES})
 endforeach()
 message(STATUS "Resource file integrity check complete")
 
-# Copy navmesh data on first build and extract it
-if (NOT EXISTS ${PROJECT_BINARY_DIR}/navmeshes/)
-	configure_file(
-		${CMAKE_SOURCE_DIR}/resources/navmeshes.zip ${PROJECT_BINARY_DIR}/navmeshes.zip
-		COPYONLY
-	)
-
-	file(ARCHIVE_EXTRACT INPUT ${PROJECT_BINARY_DIR}/navmeshes.zip)
-	file(REMOVE ${PROJECT_BINARY_DIR}/navmeshes.zip)
+# if navmeshes directory does not exist, create it
+if (NOT EXISTS ${PROJECT_BINARY_DIR}/navmeshes)
+	file(MAKE_DIRECTORY ${PROJECT_BINARY_DIR}/navmeshes)
 endif()
 
+# Copy navmesh data on first build and extract it
+configure_file(
+	${CMAKE_SOURCE_DIR}/resources/navmeshes.zip ${PROJECT_BINARY_DIR}/navmeshes.zip
+	COPYONLY
+)
+
+file(ARCHIVE_EXTRACT INPUT ${PROJECT_BINARY_DIR}/navmeshes.zip DESTINATION ${PROJECT_BINARY_DIR}/navmeshes)
+file(REMOVE ${PROJECT_BINARY_DIR}/navmeshes.zip)
+
 # Copy vanity files on first build
 set(VANITY_FILES "CREDITS.md" "INFO.md" "TESTAMENT.md" "NPC.xml")
 foreach(file ${VANITY_FILES})
diff --git a/dNavigation/dNavMesh.cpp b/dNavigation/dNavMesh.cpp
index aa43689b..c1d752bd 100644
--- a/dNavigation/dNavMesh.cpp
+++ b/dNavigation/dNavMesh.cpp
@@ -131,7 +131,7 @@ float dNavMesh::GetHeightAtPoint(const NiPoint3& location, const float halfExten
 	pos[2] = location.z;
 
 	dtPolyRef nearestRef = 0;
-	float polyPickExt[3] = { 0.0f, halfExtentsHeight, 0.0f };
+	float polyPickExt[3] = { 32.0f, halfExtentsHeight, 32.0f };
 	float nearestPoint[3] = { 0.0f, 0.0f, 0.0f };
 	dtQueryFilter filter{};
 
diff --git a/resources/navmeshes.zip b/resources/navmeshes.zip
index e0156bb1..9cd3e03a 100644
Binary files a/resources/navmeshes.zip and b/resources/navmeshes.zip differ