diff --git a/src/Generating/DistortedHeightmap.cpp b/src/Generating/DistortedHeightmap.cpp
index aac1d2bf3..d6474b3ca 100644
--- a/src/Generating/DistortedHeightmap.cpp
+++ b/src/Generating/DistortedHeightmap.cpp
@@ -270,6 +270,17 @@ const cDistortedHeightmap::sGenParam cDistortedHeightmap::m_GenParam[256] =
 	/* biMesaBryce            */ { 0.5f,  0.5f},  // 165
 	/* biMesaPlateauFM        */ { 2.0f,  2.0f},  // 166
 	/* biMesaPlateauM         */ { 2.0f,  2.0f},  // 167
+	
+	// biomes 168 .. 255 are unused, 88 empty placeholders here:
+	{}, {}, {}, {}, {}, {}, {}, {}, {}, {},  // 168 .. 177
+	{}, {}, {}, {}, {}, {}, {}, {}, {}, {},  // 178 .. 187
+	{}, {}, {}, {}, {}, {}, {}, {}, {}, {},  // 188 .. 197
+	{}, {}, {}, {}, {}, {}, {}, {}, {}, {},  // 198 .. 207
+	{}, {}, {}, {}, {}, {}, {}, {}, {}, {},  // 208 .. 217
+	{}, {}, {}, {}, {}, {}, {}, {}, {}, {},  // 218 .. 227
+	{}, {}, {}, {}, {}, {}, {}, {}, {}, {},  // 228 .. 237
+	{}, {}, {}, {}, {}, {}, {}, {}, {}, {},  // 238 .. 247
+	{}, {}, {}, {}, {}, {}, {}, {},          // 248 .. 255
 } ;