diff --git a/include/Spectre/Core/String.h b/include/Spectre/Core/String.h
index 5d16471..6699263 100644
--- a/include/Spectre/Core/String.h
+++ b/include/Spectre/Core/String.h
@@ -10,6 +10,8 @@ namespace sp { namespace core
 {
 	// Convertion functions from standard c/c++ types.
 
+	std::string to_string(int value);
+
 	std::string to_string(unsigned int value);
 
 	std::string to_string(float value);
diff --git a/source/Core/String.cpp b/source/Core/String.cpp
index 7e8c092..6bd8a74 100644
--- a/source/Core/String.cpp
+++ b/source/Core/String.cpp
@@ -4,6 +4,13 @@
 
 namespace sp {
 
+std::string core::to_string(int value)
+{
+	char buf[32];
+	sprintf(buf, "%i", value);
+	return std::string(buf);
+}
+
 std::string core::to_string(unsigned int value)
 {
 	char buf[32];