diff --git a/src/am_map.cpp b/src/am_map.cpp
index 2a603be7b..d00b4fb75 100644
--- a/src/am_map.cpp
+++ b/src/am_map.cpp
@@ -809,9 +809,9 @@ static TArray<mline_t> CheatKey;
 static TArray<mline_t> EasyKey;
 
 static std::array<mline_t, 3> thintriangle_guy = { {
-	{-.5,-.7, 1,0},
-	{1,0, -.5,.7},
-	{-.5,.7, -.5,-.7}
+	{{-.5,-.7}, {1,0}},
+	{{1,0}, {-.5,.7}},
+	{{-.5,.7}, {-.5,-.7}}
 } };
 
 //=============================================================================