diff --git a/Source/Core/Common/IniFile.h b/Source/Core/Common/IniFile.h
index fc39e783cc..0ccb25a1a5 100644
--- a/Source/Core/Common/IniFile.h
+++ b/Source/Core/Common/IniFile.h
@@ -47,12 +47,12 @@ public:
 
 		void Set(const std::string& key, float newValue)
 		{
-			Set(key, StringFromFormat("%f", newValue));
+			Set(key, StringFromFormat("%#.9g", newValue));
 		}
 
 		void Set(const std::string& key, double newValue)
 		{
-			Set(key, StringFromFormat("%f", newValue));
+			Set(key, StringFromFormat("%#.17g", newValue));
 		}
 
 		void Set(const std::string& key, int newValue)