diff --git a/src/CalcManager/CEngine/Rational.cpp b/src/CalcManager/CEngine/Rational.cpp
index f8da55a0..2e67ce7f 100644
--- a/src/CalcManager/CEngine/Rational.cpp
+++ b/src/CalcManager/CEngine/Rational.cpp
@@ -2,7 +2,6 @@
 
 #include "pch.h"
 #include "Header Files/Rational.h"
-#include "Header Files/scimath.h"
 
 using namespace std;
 
diff --git a/src/CalcManager/CEngine/scimath.cpp b/src/CalcManager/CEngine/scimath.cpp
index fc25a8c5..5062323c 100644
--- a/src/CalcManager/CEngine/scimath.cpp
+++ b/src/CalcManager/CEngine/scimath.cpp
@@ -2,8 +2,7 @@
 // Licensed under the MIT License.
 
 #include "pch.h"
-#include "Header Files/CalcEngine.h"
-#include "Ratpack/ratpak.h"
+#include "Header Files/scimath.h"
 
 using namespace std;
 using namespace CalcEngine;
diff --git a/src/CalcManager/Header Files/CalcEngine.h b/src/CalcManager/Header Files/CalcEngine.h
index 78bac318..626f3954 100644
--- a/src/CalcManager/Header Files/CalcEngine.h	
+++ b/src/CalcManager/Header Files/CalcEngine.h	
@@ -14,7 +14,6 @@
 *
 \****************************************************************************/
 
-#include "scimath.h"
 #include "CCommand.h"
 #include "EngineStrings.h"
 #include "../Command.h"
@@ -24,6 +23,7 @@
 #include "History.h"  // for History Collector
 #include "CalcInput.h"
 #include "ICalcDisplay.h"
+#include "scimath.h"
 #include "Rational.h"
 
 // The following are NOT real exports of CalcEngine, but for forward declarations