diff --git a/src/main.cpp b/src/main.cpp
index 797cb44..cc3a0c6 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3,7 +3,7 @@
 #include <iostream>
 
 int main() {
-    auto eof = TokenType::ILLEGAL;
+    token::type eof = token::type::ILLEGAL;
     std::cout << eof << std::endl;
     return 0;
 }
diff --git a/src/token/type.cpp b/src/token/type.cpp
new file mode 100644
index 0000000..48454da
--- /dev/null
+++ b/src/token/type.cpp
@@ -0,0 +1,21 @@
+#include "type.hpp"
+
+namespace token {
+
+    // Array mapping enum values to their string representations
+    constexpr std::array<std::string_view, static_cast<size_t>(type::LET) + 1>
+        tokenTypeStrings = {
+#define X(name, str) str,
+            TOKEN_LIST
+#undef X
+    };
+
+    // Stream insertion operator using the lookup array
+    std::ostream& operator<<(std::ostream& os, type type) {
+        auto idx = static_cast<size_t>(type);
+        if (idx < tokenTypeStrings.size())
+            return os << tokenTypeStrings[idx];
+        return os << "Unknown";
+    }
+
+} // namespace token
diff --git a/src/token/type.hpp b/src/token/type.hpp
index 2a7dd17..48b0d7e 100644
--- a/src/token/type.hpp
+++ b/src/token/type.hpp
@@ -30,20 +30,5 @@ namespace token {
 #undef X
     };
 
-    // Array mapping enum values to their string representations
-    static constexpr std::
-        array<std::string_view, static_cast<size_t>(type::LET) + 1>
-            tokenTypeStrings = {
-#define X(name, str) str,
-                TOKEN_LIST
-#undef X
-    };
-
-    // Stream insertion operator using the lookup array
-    inline std::ostream& operator<<(std::ostream& os, type type) {
-        auto idx = static_cast<size_t>(type);
-        if (idx < tokenTypeStrings.size())
-            return os << tokenTypeStrings[idx];
-        return os << "Unknown";
-    }
+    std::ostream& operator<<(std::ostream& os, type type);
 } // namespace token