diff --git a/release/scripts/freestyle/style_modules/Functions1D.py b/release/scripts/freestyle/style_modules/Functions1D.py
index 308486bc6a7..aaf115356cb 100755
--- a/release/scripts/freestyle/style_modules/Functions1D.py
+++ b/release/scripts/freestyle/style_modules/Functions1D.py
@@ -29,7 +29,7 @@ class pyDensityAnisotropyF1D(UnaryFunction1DDouble):
 	def getName(self):
 		return "pyDensityAnisotropyF1D"
 	def __call__(self, inter):
-		v =  integrateDouble(self._func, inter.pointsBegin(self._sampling), inter.pointsEnd(self._sampling), self._integration)
+		v = integrate(self._func, inter.pointsBegin(self._sampling), inter.pointsEnd(self._sampling), self._integration)
 		return v
 
 class pyViewMapGradientNormF1D(UnaryFunction1DDouble):
@@ -41,5 +41,5 @@ class pyViewMapGradientNormF1D(UnaryFunction1DDouble):
 	def getName(self):
 		return "pyViewMapGradientNormF1D"
 	def __call__(self, inter):
-		v =  integrateDouble(self._func, inter.pointsBegin(self._sampling), inter.pointsEnd(self._sampling), self._integration)
+		v = integrate(self._func, inter.pointsBegin(self._sampling), inter.pointsEnd(self._sampling), self._integration)
 		return v