diff --git a/ext/ghoul b/ext/ghoul
index df7b448dd5..da6c15e7f9 160000
--- a/ext/ghoul
+++ b/ext/ghoul
@@ -1 +1 @@
-Subproject commit df7b448dd574ff1afd0f96fae47687cab87858bf
+Subproject commit da6c15e7f944be2741d521270f35539440f5e5ec
diff --git a/include/openspace/util/powerscaledcoordinate.h b/include/openspace/util/powerscaledcoordinate.h
index 7ab7719bdd..19c2dd1b8d 100644
--- a/include/openspace/util/powerscaledcoordinate.h
+++ b/include/openspace/util/powerscaledcoordinate.h
@@ -72,8 +72,8 @@ public:
     PowerScaledCoordinate operator-(const PowerScaledCoordinate& rhs) const;
     float& operator[](unsigned int idx);
     float operator[](unsigned int idx) const;
-    const double dot(const PowerScaledCoordinate& rhs) const;
-    const double angle(const PowerScaledCoordinate& rhs) const;
+    double dot(const PowerScaledCoordinate& rhs) const;
+    double angle(const PowerScaledCoordinate& rhs) const;
 
     // scalar operators
     PowerScaledCoordinate operator*(const double& rhs) const;
diff --git a/include/openspace/util/powerscaledscalar.h b/include/openspace/util/powerscaledscalar.h
index de6803bbaf..60810d922a 100644
--- a/include/openspace/util/powerscaledscalar.h
+++ b/include/openspace/util/powerscaledscalar.h
@@ -32,15 +32,10 @@
 
 #include <iostream>
 
-namespace openspace
-{
-
-// forward declare the power scaled coordinates
-//class psc;
+namespace openspace {
 
 class pss {
 public:
-
 	// constructors
 	pss();
 	pss(const glm::vec2 &v);
diff --git a/src/util/powerscaledcoordinate.cpp b/src/util/powerscaledcoordinate.cpp
index c51ea3e80b..9c674b4da2 100644
--- a/src/util/powerscaledcoordinate.cpp
+++ b/src/util/powerscaledcoordinate.cpp
@@ -238,7 +238,7 @@ float PowerScaledCoordinate::operator[](unsigned int idx) const
     return _vec[idx];
 }
 
-const double PowerScaledCoordinate::dot(const PowerScaledCoordinate& rhs) const
+double PowerScaledCoordinate::dot(const PowerScaledCoordinate& rhs) const
 {
     double ds = _vec[3] - rhs._vec[3];
     if (ds >= 0) {
@@ -255,7 +255,7 @@ const double PowerScaledCoordinate::dot(const PowerScaledCoordinate& rhs) const
     }
 }
 
-const double PowerScaledCoordinate::angle(const PowerScaledCoordinate& rhs) const
+double PowerScaledCoordinate::angle(const PowerScaledCoordinate& rhs) const
 {
     glm::dvec3 uPowerScaledCoordinatealed(rhs._vec[0], rhs._vec[1], rhs._vec[2]);
     glm::dvec3 shortened(_vec[0], _vec[1], _vec[2]);