diff --git a/wpiformat/wpiformat/stdlib.py b/wpiformat/wpiformat/stdlib.py
index d7d7305..abd3fbd 100644
--- a/wpiformat/wpiformat/stdlib.py
+++ b/wpiformat/wpiformat/stdlib.py
@@ -61,9 +61,9 @@ def __init__(self, name, func_names=None, type_regexes=None, add_prefix=True):
 
             type_names = regex_prefix + r"(" + r"|".join(type_regexes) + r")"
 
-            # Followed by optional spaces and ">", ")", ",", ";", or pointer
-            # asterisks
-            lookahead = r"(?=(\s*(\>|\)|,|;|\*+))|\s)"
+            # Followed by optional spaces and ">", ")", ",", ";", pointer
+            # asterisks, or ellipses
+            lookahead = r"(?=(\s*(\>|\)|,|;|\*+|\.\.\.))|\s)"
 
             self.type_regex = regex.compile(lookbehind + type_names + lookahead)
         else:
diff --git a/wpiformat/wpiformat/test/test_stdlib.py b/wpiformat/wpiformat/test/test_stdlib.py
index 8be4780..9416083 100644
--- a/wpiformat/wpiformat/test/test_stdlib.py
+++ b/wpiformat/wpiformat/test/test_stdlib.py
@@ -173,4 +173,16 @@ def test_stdlib():
     test.add_input("./Main.cpp", "typedef integer std::uint8_t;")
     test.add_output("typedef integer uint8_t;", True)
 
+    # Remove "std::" from variadic template argument
+    test.add_input(
+        "./Class.cpp",
+        "template <typename Char, typename Traits, std::size_t N1, std::size_t... N>"
+        + os.linesep,
+    )
+    test.add_output(
+        "template <typename Char, typename Traits, size_t N1, size_t... N>"
+        + os.linesep,
+        True,
+    )
+
     test.run(OutputType.FILE)