diff --git a/lib/localize/datetime/format/compiler.ex b/lib/localize/datetime/format/compiler.ex
index 45b284d4..d6ccc4be 100644
--- a/lib/localize/datetime/format/compiler.ex
+++ b/lib/localize/datetime/format/compiler.ex
@@ -34,7 +34,7 @@ defmodule Localize.DateTime.Format.Compiler do
   def tokenize(format_string) when is_binary(format_string) do
     format_string
     |> String.to_charlist()
-    |> :date_time_format_lexer.string()
+    |> :localize_date_time_format_lexer.string()
     |> maybe_add_decimal_separator()
     |> maybe_return_error(format_string)
   end
@@ -67,7 +67,7 @@ defmodule Localize.DateTime.Format.Compiler do
     [first | seconds_followed_by_fraction(rest)]
   end
 
-  defp maybe_return_error({:error, {_, :date_time_format_lexer, {_, error}}, _}, format) do
+  defp maybe_return_error({:error, {_, :localize_date_time_format_lexer, {_, error}}, _}, format) do
     {:error,
      Localize.DateTimeFormatError.exception(
        format: format,
diff --git a/lib/localize/number/format/compiler.ex b/lib/localize/number/format/compiler.ex
index 494886f9..eb0c468a 100644
--- a/lib/localize/number/format/compiler.ex
+++ b/lib/localize/number/format/compiler.ex
@@ -60,7 +60,7 @@ defmodule Localize.Number.Format.Compiler do
   def tokenize(definition) when is_binary(definition) do
     definition
     |> String.to_charlist()
-    |> :decimal_formats_lexer.string()
+    |> :localize_decimal_formats_lexer.string()
   end
 
   @doc """
@@ -88,7 +88,7 @@ defmodule Localize.Number.Format.Compiler do
   """
   @spec parse(String.t() | list()) :: {:ok, Keyword.t()} | {:error, term()}
   def parse(tokens) when is_list(tokens) do
-    :decimal_formats_parser.parse(tokens)
+    :localize_decimal_formats_parser.parse(tokens)
   end
 
   def parse("") do
@@ -97,7 +97,7 @@ defmodule Localize.Number.Format.Compiler do
 
   def parse(definition) when is_binary(definition) do
     {:ok, tokens, _end_line} = tokenize(definition)
-    :decimal_formats_parser.parse(tokens)
+    :localize_decimal_formats_parser.parse(tokens)
   end
 
   def parse(nil) do
diff --git a/lib/localize/number/plural_rules/compiler.ex b/lib/localize/number/plural_rules/compiler.ex
index de9e256a..b0753dea 100644
--- a/lib/localize/number/plural_rules/compiler.ex
+++ b/lib/localize/number/plural_rules/compiler.ex
@@ -3,8 +3,8 @@ defmodule Localize.Number.PluralRule.Compiler do
 
   # Compiles CLDR plural rule definitions into Elixir AST.
   #
-  # Uses the Erlang leex lexer (`:plural_rules_lexer`) and yecc parser
-  # (`:plural_rules_parser`) to tokenize and parse rule definitions
+  # Uses the Erlang leex lexer (`:localize_plural_rules_lexer`) and yecc parser
+  # (`:localize_plural_rules_parser`) to tokenize and parse rule definitions
   # from the ICU/CLDR plural rules syntax.
 
   @doc """
@@ -27,7 +27,7 @@ defmodule Localize.Number.PluralRule.Compiler do
   def tokenize(definition) when is_binary(definition) do
     definition
     |> String.to_charlist()
-    |> :plural_rules_lexer.string()
+    |> :localize_plural_rules_lexer.string()
   end
 
   @doc """
@@ -49,11 +49,11 @@ defmodule Localize.Number.PluralRule.Compiler do
 
   """
   def parse(tokens) when is_list(tokens) do
-    :plural_rules_parser.parse(tokens)
+    :localize_plural_rules_parser.parse(tokens)
   end
 
   def parse(definition) when is_binary(definition) do
     {:ok, tokens, _end_line} = tokenize(definition)
-    :plural_rules_parser.parse(tokens)
+    :localize_plural_rules_parser.parse(tokens)
   end
 end
diff --git a/lib/localize/number/rbnf/rule.ex b/lib/localize/number/rbnf/rule.ex
index 0cdc8c6a..aca8174b 100644
--- a/lib/localize/number/rbnf/rule.ex
+++ b/lib/localize/number/rbnf/rule.ex
@@ -59,7 +59,7 @@ defmodule Localize.Number.Rbnf.Rule do
     definition
     |> String.trim_leading("'")
     |> String.to_charlist()
-    |> :rbnf_lexer.string()
+    |> :localize_rbnf_lexer.string()
   end
 
   def tokenize(%__MODULE__{definition: definition}) do
@@ -86,6 +86,6 @@ defmodule Localize.Number.Rbnf.Rule do
   end
 
   def parse(tokens) when is_list(tokens) do
-    :rbnf_parser.parse(tokens)
+    :localize_rbnf_parser.parse(tokens)
   end
 end
diff --git a/src/date_time_format_lexer.xrl b/src/localize_date_time_format_lexer.xrl
similarity index 100%
rename from src/date_time_format_lexer.xrl
rename to src/localize_date_time_format_lexer.xrl
diff --git a/src/decimal_formats_lexer.xrl b/src/localize_decimal_formats_lexer.xrl
similarity index 100%
rename from src/decimal_formats_lexer.xrl
rename to src/localize_decimal_formats_lexer.xrl
diff --git a/src/decimal_formats_parser.yrl b/src/localize_decimal_formats_parser.yrl
similarity index 100%
rename from src/decimal_formats_parser.yrl
rename to src/localize_decimal_formats_parser.yrl
diff --git a/src/plural_rules_lexer.xrl b/src/localize_plural_rules_lexer.xrl
similarity index 100%
rename from src/plural_rules_lexer.xrl
rename to src/localize_plural_rules_lexer.xrl
diff --git a/src/plural_rules_parser.yrl b/src/localize_plural_rules_parser.yrl
similarity index 100%
rename from src/plural_rules_parser.yrl
rename to src/localize_plural_rules_parser.yrl
diff --git a/src/rbnf_lexer.xrl b/src/localize_rbnf_lexer.xrl
similarity index 100%
rename from src/rbnf_lexer.xrl
rename to src/localize_rbnf_lexer.xrl
diff --git a/src/rbnf_parser.yrl b/src/localize_rbnf_parser.yrl
similarity index 100%
rename from src/rbnf_parser.yrl
rename to src/localize_rbnf_parser.yrl
diff --git a/test/localize/number/rbnf_rule_processor_test.exs b/test/localize/number/rbnf_rule_processor_test.exs
index f2ee48f1..b63107db 100644
--- a/test/localize/number/rbnf_rule_processor_test.exs
+++ b/test/localize/number/rbnf_rule_processor_test.exs
@@ -62,7 +62,7 @@ defmodule Localize.Number.RbnfRuleProcessorTest do
     end
 
     test "returns a parser error for an unterminated construct" do
-      assert {:error, {1, :rbnf_parser, _reason}} = Rule.parse("twenty[->>];")
+      assert {:error, {1, :localize_rbnf_parser, _reason}} = Rule.parse("twenty[->>];")
     end
   end