diff --git a/include/Errors.hpp b/include/Errors.hpp
index 151bca0..8edab0a 100644
--- a/include/Errors.hpp
+++ b/include/Errors.hpp
@@ -23,6 +23,29 @@ typedef std::unordered_map<unsigned int, const char*> ErrorCodeMap;
 template<class ErrorType>
 class ErrorBase : public std::exception {
 public:
+    ErrorBase(
+        const unsigned int code,
+        unsigned int line=0,
+        std::string filename=""
+    ) noexcept : ErrorBase(
+        code, 
+        ErrorBase<ErrorType>::lookup(code),
+        line,
+        filename
+    ) {}
+    ErrorBase(
+        const unsigned int code,
+        const std::exception& trace,
+        unsigned int line=0,
+        std::string filename=""
+    ) noexcept : ErrorBase(
+        code, 
+        ErrorBase<ErrorType>::lookup(code),
+        trace,
+        line,
+        filename
+    ) {}
+
     static std::string lookup(unsigned int);
     unsigned int code() const noexcept {
         return static_cast<const ErrorType*>(this)->_code;
@@ -71,29 +94,6 @@ protected:
         }
         _msg += "\n    Trace: " + what_msg;
     }
-    ErrorBase(
-        const unsigned int code,
-        unsigned int line=0,
-        std::string filename=""
-    ) noexcept : ErrorBase(
-        code, 
-        ErrorBase<ErrorType>::lookup(code),
-        line,
-        filename
-    ) {}
-
-    ErrorBase(
-        const unsigned int code,
-        const std::exception& trace,
-        unsigned int line=0,
-        std::string filename=""
-    ) noexcept : ErrorBase(
-        code, 
-        ErrorBase<ErrorType>::lookup(code),
-        trace,
-        line,
-        filename
-    ) {}
     
     unsigned int _code;
     std::string _msg;
@@ -105,9 +105,10 @@ public:
         GENERAL, UNDEFINED, BADERRORCODE
     };
 
-    Error(unsigned int code) : ErrorBase<Error>(code, ErrorBase<Error>::lookup(code)) {}
-    Error(unsigned int code, const std::exception& trace, unsigned int line=0, const std::string& filename="") 
-        : ErrorBase<Error>(code, ErrorBase<Error>::lookup(code), trace, line, filename) {}
+    using ErrorBase<Error>::ErrorBase;
+    //Error(unsigned int code) : ErrorBase<Error>(code, ErrorBase<Error>::lookup(code)) {}
+    //Error(unsigned int code, const std::exception& trace, unsigned int line=0, const std::string& filename="") 
+    //    : ErrorBase<Error>(code, ErrorBase<Error>::lookup(code), trace, line, filename) {}
 
     friend ErrorBase<Error>;
 
diff --git a/tests/ErrorTest/main.cpp b/tests/ErrorTest/main.cpp
index 25e426d..f0eda15 100644
--- a/tests/ErrorTest/main.cpp
+++ b/tests/ErrorTest/main.cpp
@@ -7,11 +7,13 @@ using namespace nb;
 
 class TestError : public ErrorBase<TestError> {
 public:
-    TestError(unsigned int code, unsigned int line=0, const std::string& filename="") 
-        : ErrorBase<TestError>(code, ErrorBase<TestError>::lookup(code)) {}
-    TestError(unsigned int code, const std::exception& trace, unsigned int line=0, const std::string& filename="") 
-        : ErrorBase<TestError>(code, ErrorBase<TestError>::lookup(code), trace, line, filename) {}
+    //TestError(unsigned int code, unsigned int line=0, const std::string& filename="") 
+    //    : ErrorBase<TestError>(code, ErrorBase<TestError>::lookup(code)) {}
+    //TestError(unsigned int code, const std::exception& trace, unsigned int line=0, const std::string& filename="") 
+    //    : ErrorBase<TestError>(code, ErrorBase<TestError>::lookup(code), trace, line, filename) {}
     
+    using ErrorBase<TestError>::ErrorBase;
+
     enum ErrorCodes : unsigned int {
         A, B, C, D
     };