diff --git a/Recast/Source/RecastMesh.cpp b/Recast/Source/RecastMesh.cpp
index dffd450..e4f9c4b 100644
--- a/Recast/Source/RecastMesh.cpp
+++ b/Recast/Source/RecastMesh.cpp
@@ -1537,7 +1537,7 @@ bool rcCopyPolyMesh(rcContext* ctx, const rcPolyMesh& src, rcPolyMesh& dst)
 		ctx->log(RC_LOG_ERROR, "rcCopyPolyMesh: Out of memory 'dst.flags' (%d).", src.npolys);
 		return false;
 	}
-	memcpy(dst.flags, src.flags, sizeof(unsigned char)*src.npolys);
+	memcpy(dst.flags, src.flags, sizeof(unsigned short)*src.npolys);
 	
 	return true;
 }
diff --git a/Recast/Source/RecastMeshDetail.cpp b/Recast/Source/RecastMeshDetail.cpp
index 431952f..10c8171 100644
--- a/Recast/Source/RecastMeshDetail.cpp
+++ b/Recast/Source/RecastMeshDetail.cpp
@@ -1217,7 +1217,7 @@ bool rcBuildPolyMeshDetail(rcContext* ctx, const rcPolyMesh& mesh, const rcCompa
 		return false;
 	}
 	dmesh.ntris = 0;
-	dmesh.tris = (unsigned char*)rcAlloc(sizeof(unsigned char*)*tcap*4, RC_ALLOC_PERM);
+	dmesh.tris = (unsigned char*)rcAlloc(sizeof(unsigned char)*tcap*4, RC_ALLOC_PERM);
 	if (!dmesh.tris)
 	{
 		ctx->log(RC_LOG_ERROR, "rcBuildPolyMeshDetail: Out of memory 'dmesh.tris' (%d).", tcap*4);