diff --git a/autodoc/doc_state.py b/autodoc/doc_state.py
index f047b5f..ea7718b 100644
--- a/autodoc/doc_state.py
+++ b/autodoc/doc_state.py
@@ -514,9 +514,9 @@ def __state_full_graph__(label, state, app):
     graph = f"digraph {label[1:]}" + "{\n"
     graph += "ranksep = 2;\n"
     graph += "nodesep = 0.05;\n"
-    graph += 'fontname="monospace"\n'
+    graph += 'fontname="monospace";\n'
     graph += "rankdir = LR;\n"
-    graph += 'edge [fontname="monospace"]\n'
+    graph += 'edge [fontname="monospace"];\n'
     graph += 'node [shape=Mrecord, fontname="monospace"];\n'
     graph += f"label=<State: <B>{label[1:]}</B>>;\n"
     graph += "fontsize=40;\n"
@@ -626,8 +626,12 @@ def __simple_edges__(edges, datasources):
 def __state_simple_graph__(label, state, app):
     graph = f"digraph {label[1:]}" + "{\n"
     graph += "rankdir = LR;\n"
-    graph += 'node [shape=rect, style="filled", fillcolor=white];\n'
+    graph += (
+        'node [shape=rect, style="filled", fillcolor=white, fontname="monospace"];\n'
+    )
+    graph += 'edge [fontname="monospace"];\n'
     graph += f"label=<State: <B>{label[1:]}</B>>;\n"
+    graph += 'fontname="monospace";\n'
     graph += "fontsize=40;\n"
     graph += "\n"
     arrows = ""
diff --git a/autodoc/doc_state_machine.py b/autodoc/doc_state_machine.py
index d41678c..b0213dd 100644
--- a/autodoc/doc_state_machine.py
+++ b/autodoc/doc_state_machine.py
@@ -13,7 +13,9 @@ def doc_state_machine(name, obj):
     graph = f"digraph {name}" + "{\n"
     graph += "rankdir = LR;\n"
     # graph += "layout = circo;\n"
-    graph += 'node [shape=egg, style="filled"];\n'
+    graph += 'fontname="monospace";\n'
+    graph += 'node [shape=egg, style="filled", fontname="monospace"];\n'
+    graph += 'edge [fontname="monospace"];\n'
     first = True
     for key in obj:
         if key[0] == "+":