diff --git a/fads/btagging.go b/fads/btagging.go
index 2eb9fa89d..dccfb6cbf 100644
--- a/fads/btagging.go
+++ b/fads/btagging.go
@@ -75,7 +75,7 @@ func (tsk *BTagging) Configure(ctx fwk.Context) error {
 	}
 
 	tsk.src = rand.New(rand.NewSource(tsk.seed))
-	tsk.flat = distuv.Uniform{Min: 0, Max: 1, Source: tsk.src}
+	tsk.flat = distuv.Uniform{Min: 0, Max: 1, Src: tsk.src}
 	return err
 }
 
diff --git a/fads/calo.go b/fads/calo.go
index dcdb98075..3c194137c 100644
--- a/fads/calo.go
+++ b/fads/calo.go
@@ -211,7 +211,7 @@ func (tsk *Calorimeter) Configure(ctx fwk.Context) error {
 	}
 
 	tsk.src = rand.New(rand.NewSource(tsk.seed))
-	tsk.gauss = distuv.Normal{Mu: 0, Sigma: 1, Source: tsk.src}
+	tsk.gauss = distuv.Normal{Mu: 0, Sigma: 1, Src: tsk.src}
 	return err
 }
 
diff --git a/fads/efficiency.go b/fads/efficiency.go
index e77cc852a..2459125fd 100644
--- a/fads/efficiency.go
+++ b/fads/efficiency.go
@@ -43,7 +43,7 @@ func (tsk *Efficiency) Configure(ctx fwk.Context) error {
 func (tsk *Efficiency) StartTask(ctx fwk.Context) error {
 	var err error
 	src := rand.New(rand.NewSource(tsk.seed))
-	tsk.dist = distuv.Uniform{Min: 0, Max: 1, Source: src}
+	tsk.dist = distuv.Uniform{Min: 0, Max: 1, Src: src}
 	return err
 }
 
diff --git a/fads/energy_smearing.go b/fads/energy_smearing.go
index f3dda0230..725986ee1 100644
--- a/fads/energy_smearing.go
+++ b/fads/energy_smearing.go
@@ -81,7 +81,7 @@ func (tsk *EnergySmearing) Process(ctx fwk.Context) error {
 
 		// apply smearing
 		tsk.srcmu.Lock()
-		smearEne := distuv.Normal{Mu: ene, Sigma: tsk.smear(eta, ene), Source: tsk.src}
+		smearEne := distuv.Normal{Mu: ene, Sigma: tsk.smear(eta, ene), Src: tsk.src}
 		ene = smearEne.Rand()
 		tsk.srcmu.Unlock()
 
diff --git a/fads/momentum_smearing.go b/fads/momentum_smearing.go
index da5989e22..3d7d481f4 100644
--- a/fads/momentum_smearing.go
+++ b/fads/momentum_smearing.go
@@ -81,7 +81,7 @@ func (tsk *MomentumSmearing) Process(ctx fwk.Context) error {
 
 		// apply smearing
 		tsk.srcmu.Lock()
-		smearPt := distuv.Normal{Mu: pt, Sigma: tsk.smear(pt, eta) * pt, Source: tsk.src}
+		smearPt := distuv.Normal{Mu: pt, Sigma: tsk.smear(pt, eta) * pt, Src: tsk.src}
 		pt = smearPt.Rand()
 		tsk.srcmu.Unlock()
 
diff --git a/fads/tautagging.go b/fads/tautagging.go
index 1a71c6a39..fa77cfd5c 100644
--- a/fads/tautagging.go
+++ b/fads/tautagging.go
@@ -91,7 +91,7 @@ func (tsk *TauTagging) Configure(ctx fwk.Context) error {
 	}
 
 	tsk.src = rand.New(rand.NewSource(tsk.seed))
-	tsk.flat = distuv.Uniform{Min: 0, Max: 1, Source: tsk.src}
+	tsk.flat = distuv.Uniform{Min: 0, Max: 1, Src: tsk.src}
 	return err
 }
 
diff --git a/fit/README.md b/fit/README.md
index 5abf29728..eb3571cb3 100644
--- a/fit/README.md
+++ b/fit/README.md
@@ -26,9 +26,9 @@ func ExampleH1D_gaussian(t *testing.T) {
 
 	// Create a normal distribution.
 	dist := distuv.Normal{
-		Mu:     mean,
-		Sigma:  sigma,
-		Source: rand.New(rand.NewSource(0)),
+		Mu:    mean,
+		Sigma: sigma,
+		Src:   rand.New(rand.NewSource(0)),
 	}
 
 	// Draw some random values from the standard
diff --git a/fit/hist_test.go b/fit/hist_test.go
index ea0d4da7d..c826f2039 100644
--- a/fit/hist_test.go
+++ b/fit/hist_test.go
@@ -38,9 +38,9 @@ func ExampleH1D_gaussian(t *testing.T) {
 
 	// Create a normal distribution.
 	dist := distuv.Normal{
-		Mu:     mean,
-		Sigma:  sigma,
-		Source: rand.New(rand.NewSource(0)),
+		Mu:    mean,
+		Sigma: sigma,
+		Src:   rand.New(rand.NewSource(0)),
 	}
 
 	// Draw some random values from the standard
diff --git a/hbook/README.md b/hbook/README.md
index bf127950c..fd033cc3e 100644
--- a/hbook/README.md
+++ b/hbook/README.md
@@ -31,9 +31,9 @@ func ExampleH1D() {
 
 	// Create a normal distribution.
 	dist := distuv.Normal{
-		Mu:     0,
-		Sigma:  1,
-		Source: rand.New(rand.NewSource(0)),
+		Mu:    0,
+		Sigma: 1,
+		Src:   rand.New(rand.NewSource(0)),
 	}
 
 	// Draw some random values from the standard
diff --git a/hbook/h1d_test.go b/hbook/h1d_test.go
index da9192187..3c6032d08 100644
--- a/hbook/h1d_test.go
+++ b/hbook/h1d_test.go
@@ -26,9 +26,9 @@ func ExampleH1D() {
 
 	// Create a normal distribution.
 	dist := distuv.Normal{
-		Mu:     0,
-		Sigma:  1,
-		Source: rand.New(rand.NewSource(0)),
+		Mu:    0,
+		Sigma: 1,
+		Src:   rand.New(rand.NewSource(0)),
 	}
 
 	// Draw some random values from the standard
diff --git a/hplot/README.md b/hplot/README.md
index 0144e64cd..b2e5cd962 100644
--- a/hplot/README.md
+++ b/hplot/README.md
@@ -32,9 +32,9 @@ func ExampleH1D(t *testing.T) {
 
 	// Create a normal distribution.
 	dist := distuv.Normal{
-		Mu:     0,
-		Sigma:  1,
-		Source: rand.New(rand.NewSource(0)),
+		Mu:    0,
+		Sigma: 1,
+		Src:   rand.New(rand.NewSource(0)),
 	}
 
 	// Draw some random values from the standard
@@ -91,9 +91,9 @@ func ExampleTiledPlot(t *testing.T) {
 
 	// Create a normal distribution.
 	dist := distuv.Normal{
-		Mu:     0,
-		Sigma:  1,
-		Source: rand.New(rand.NewSource(0)),
+		Mu:    0,
+		Sigma: 1,
+		Src:   rand.New(rand.NewSource(0)),
 	}
 
 	newHist := func(p *hplot.Plot) {
diff --git a/hplot/h1d_test.go b/hplot/h1d_test.go
index 2ca197b2e..8a2641d7f 100644
--- a/hplot/h1d_test.go
+++ b/hplot/h1d_test.go
@@ -21,9 +21,9 @@ func ExampleH1D(t *testing.T) {
 
 	// Create a normal distribution.
 	dist := distuv.Normal{
-		Mu:     0,
-		Sigma:  1,
-		Source: rand.New(rand.NewSource(0)),
+		Mu:    0,
+		Sigma: 1,
+		Src:   rand.New(rand.NewSource(0)),
 	}
 
 	// Draw some random values from the standard
@@ -79,9 +79,9 @@ func ExampleH1D_toPDF(t *testing.T) {
 
 	// Create a normal distribution.
 	dist := distuv.Normal{
-		Mu:     0,
-		Sigma:  1,
-		Source: rand.New(rand.NewSource(0)),
+		Mu:    0,
+		Sigma: 1,
+		Src:   rand.New(rand.NewSource(0)),
 	}
 
 	// Draw some random values from the standard
diff --git a/hplot/hplot_test.go b/hplot/hplot_test.go
index cae4aee3d..fc16213e3 100644
--- a/hplot/hplot_test.go
+++ b/hplot/hplot_test.go
@@ -56,9 +56,9 @@ func Example_subplot() {
 
 	// Create a normal distribution.
 	dist := distuv.Normal{
-		Mu:     0,
-		Sigma:  1,
-		Source: rand.New(rand.NewSource(0)),
+		Mu:    0,
+		Sigma: 1,
+		Src:   rand.New(rand.NewSource(0)),
 	}
 
 	// Draw some random values from the standard
@@ -147,9 +147,9 @@ func Example_diffplot() {
 
 	// Create a normal distribution.
 	dist := distuv.Normal{
-		Mu:     0,
-		Sigma:  1,
-		Source: rand.New(rand.NewSource(0)),
+		Mu:    0,
+		Sigma: 1,
+		Src:   rand.New(rand.NewSource(0)),
 	}
 
 	hist1 := hbook.NewH1D(20, -4, +4)
@@ -251,9 +251,9 @@ func Example_latexplot() {
 
 	// Create a normal distribution.
 	dist := distuv.Normal{
-		Mu:     0,
-		Sigma:  1,
-		Source: rand.New(rand.NewSource(0)),
+		Mu:    0,
+		Sigma: 1,
+		Src:   rand.New(rand.NewSource(0)),
 	}
 
 	hist := hbook.NewH1D(20, -4, +4)
diff --git a/hplot/tiledplot_test.go b/hplot/tiledplot_test.go
index 364ce90ab..6a6ba0298 100644
--- a/hplot/tiledplot_test.go
+++ b/hplot/tiledplot_test.go
@@ -22,9 +22,9 @@ func ExampleTiledPlot(t *testing.T) {
 
 	// Create a normal distribution.
 	dist := distuv.Normal{
-		Mu:     0,
-		Sigma:  1,
-		Source: rand.New(rand.NewSource(0)),
+		Mu:    0,
+		Sigma: 1,
+		Src:   rand.New(rand.NewSource(0)),
 	}
 
 	newHist := func(p *hplot.Plot) {