diff --git a/src/Blocks/BlockSignPost.h b/src/Blocks/BlockSignPost.h
index 40e15c253..d97501651 100644
--- a/src/Blocks/BlockSignPost.h
+++ b/src/Blocks/BlockSignPost.h
@@ -35,7 +35,7 @@ public:
 		}
 		BLOCKTYPE Type = a_Chunk.GetBlock(a_RelX, a_RelY - 1, a_RelZ);
 
-		return ((Type == E_BLOCK_SIGN_POST) || cBlockInfo::IsSolid(Type));
+		return ((Type == E_BLOCK_SIGN_POST) || (Type == E_BLOCK_WALLSIGN) || cBlockInfo::IsSolid(Type));
 	}