diff --git a/blas/blas32/blas32.go b/blas/blas32/blas32.go
index 7cf009fb..926a5ac2 100644
--- a/blas/blas32/blas32.go
+++ b/blas/blas32/blas32.go
@@ -12,7 +12,8 @@ import (
 var blas32 blas.Float32 = gonum.Implementation{}
 
 // Use sets the BLAS float32 implementation to be used by subsequent BLAS calls.
-// The default implementation is native.Implementation.
+// The default implementation is
+// gonum.org/v1/gonum/blas/gonum.Implementation.
 func Use(b blas.Float32) {
 	blas32 = b
 }
diff --git a/blas/blas64/blas64.go b/blas/blas64/blas64.go
index 11dfaafb..91fb6090 100644
--- a/blas/blas64/blas64.go
+++ b/blas/blas64/blas64.go
@@ -12,7 +12,8 @@ import (
 var blas64 blas.Float64 = gonum.Implementation{}
 
 // Use sets the BLAS float64 implementation to be used by subsequent BLAS calls.
-// The default implementation is native.Implementation.
+// The default implementation is
+// gonum.org/v1/gonum/blas/gonum.Implementation.
 func Use(b blas.Float64) {
 	blas64 = b
 }
diff --git a/blas/cblas128/cblas128.go b/blas/cblas128/cblas128.go
index 7612da2f..1205da8a 100644
--- a/blas/cblas128/cblas128.go
+++ b/blas/cblas128/cblas128.go
@@ -12,7 +12,8 @@ import (
 var cblas128 blas.Complex128 = gonum.Implementation{}
 
 // Use sets the BLAS complex128 implementation to be used by subsequent BLAS calls.
-// The default implementation is cgo.Implementation.
+// The default implementation is
+// gonum.org/v1/gonum/blas/gonum.Implementation.
 func Use(b blas.Complex128) {
 	cblas128 = b
 }
diff --git a/blas/cblas64/cblas64.go b/blas/cblas64/cblas64.go
index a6810ab8..042a7dab 100644
--- a/blas/cblas64/cblas64.go
+++ b/blas/cblas64/cblas64.go
@@ -12,7 +12,8 @@ import (
 var cblas64 blas.Complex64 = gonum.Implementation{}
 
 // Use sets the BLAS complex64 implementation to be used by subsequent BLAS calls.
-// The default implementation is cgo.Implementation.
+// The default implementation is
+// gonum.org/v1/gonum/blas/gonum.Implementation.
 func Use(b blas.Complex64) {
 	cblas64 = b
 }