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-rw-r--r--tikzit/src/common/Preambles.m1
1 files changed, 1 insertions, 0 deletions
diff --git a/tikzit/src/common/Preambles.m b/tikzit/src/common/Preambles.m
index e107d5e..af3bbc4 100644
--- a/tikzit/src/common/Preambles.m
+++ b/tikzit/src/common/Preambles.m
@@ -30,6 +30,7 @@ static NSString *PREAMBLE_HEAD =
@"\\usepackage[svgnames]{xcolor}\n"
@"\\usepackage{tikz}\n"
@"\\usetikzlibrary{decorations.markings}\n"
+@"\\usetikzlibrary{shapes.geometric}\n"
@"\\pagestyle{empty}\n"
@"\n"
@"\\pgfdeclarelayer{edgelayer}\n"