diff --git a/fakeexporter/flows/generate.go b/fakeexporter/flows/generate.go
index 12e8c144..44afe0f1 100644
--- a/fakeexporter/flows/generate.go
+++ b/fakeexporter/flows/generate.go
@@ -106,7 +106,7 @@ func generateFlows(flowConfigs []FlowConfiguration, seed int64, now time.Time) [
 			if flowConfig.Size == 0 {
 				flow.Octets = uint32(r.Int31n(1200) + 300)
 			} else {
-				flow.Octets = uint32(float64(flowConfig.Size) * (0.9 + r.Float64()/5))
+				flow.Octets = uint32(float64(flowConfig.Size) * (r.NormFloat64()*0.3 + 1))
 				if flow.Octets > 9000 {
 					flow.Octets = 9000
 				} else if flow.Octets > 1500 && flowConfig.Size <= 1500 {
diff --git a/fakeexporter/flows/generate_test.go b/fakeexporter/flows/generate_test.go
index 21cca116..ddaca666 100644
--- a/fakeexporter/flows/generate_test.go
+++ b/fakeexporter/flows/generate_test.go
@@ -153,7 +153,7 @@ func TestGenerateFlows(t *testing.T) {
 					DstAddr: net.ParseIP("203.0.113.91"),
 					EType:   0x800,
 					IPFlow: IPFlow{
-						Octets:        1500,
+						Octets:        1365,
 						Packets:       1,
 						Proto:         6,
 						SrcPort:       443,
@@ -169,7 +169,7 @@ func TestGenerateFlows(t *testing.T) {
 					DstAddr: net.ParseIP("203.0.113.220"),
 					EType:   0x800,
 					IPFlow: IPFlow{
-						Octets:        1283,
+						Octets:        1500,
 						Packets:       1,
 						Proto:         6,
 						SrcPort:       443,
@@ -203,7 +203,7 @@ func TestGenerateFlows(t *testing.T) {
 					DstAddr: net.ParseIP("2001:db8:2:0:245b:11f7:351e:dc1a"),
 					EType:   0x86dd,
 					IPFlow: IPFlow{
-						Octets:        1312,
+						Octets:        1170,
 						Packets:       1,
 						Proto:         6,
 						SrcPort:       34045,