diff --git a/src/nt/ntaggregate.cpp b/src/nt/ntaggregate.cpp
index d4879a0..20fc498 100644
--- a/src/nt/ntaggregate.cpp
+++ b/src/nt/ntaggregate.cpp
@@ -18,9 +18,6 @@ static NTFieldPtr ntField = NTField::get();
 
 namespace detail {
 
-static NTFieldPtr ntField = NTField::get();
-
-
 StructureConstPtr NTAggregateBuilder::createStructure()
 {
     FieldBuilderPtr builder =
diff --git a/src/nt/ntattribute.cpp b/src/nt/ntattribute.cpp
index d8cfa49..64daffd 100644
--- a/src/nt/ntattribute.cpp
+++ b/src/nt/ntattribute.cpp
@@ -18,8 +18,6 @@ static NTFieldPtr ntField = NTField::get();
 
 namespace detail {
 
-static NTFieldPtr ntField = NTField::get();
-
 
 StructureConstPtr NTAttributeBuilder::createStructure()
 {
diff --git a/src/nt/ntenum.cpp b/src/nt/ntenum.cpp
index 2ee0d44..967573b 100644
--- a/src/nt/ntenum.cpp
+++ b/src/nt/ntenum.cpp
@@ -18,8 +18,6 @@ static NTFieldPtr ntField = NTField::get();
 
 namespace detail {
 
-static NTFieldPtr ntField = NTField::get();
-
 
 StructureConstPtr NTEnumBuilder::createStructure()
 {
diff --git a/src/nt/ntndarrayAttribute.cpp b/src/nt/ntndarrayAttribute.cpp
index 78d3743..72380c5 100644
--- a/src/nt/ntndarrayAttribute.cpp
+++ b/src/nt/ntndarrayAttribute.cpp
@@ -19,9 +19,6 @@ static NTFieldPtr ntField = NTField::get();
 
 namespace detail {
 
-static NTFieldPtr ntField = NTField::get();
-
-
 StructureConstPtr NTNDArrayAttributeBuilder::createStructure()
 {
     FieldBuilderPtr builder =
diff --git a/src/nt/ntscalar.cpp b/src/nt/ntscalar.cpp
index 21be92d..f827559 100644
--- a/src/nt/ntscalar.cpp
+++ b/src/nt/ntscalar.cpp
@@ -18,8 +18,6 @@ static NTFieldPtr ntField = NTField::get();
 
 namespace detail {
 
-static NTFieldPtr ntField = NTField::get();
-
 NTScalarBuilder::shared_pointer NTScalarBuilder::value(
         epics::pvData::ScalarType scalarType
         )
diff --git a/src/nt/ntunion.cpp b/src/nt/ntunion.cpp
index c873b7a..a4277b1 100644
--- a/src/nt/ntunion.cpp
+++ b/src/nt/ntunion.cpp
@@ -18,8 +18,6 @@ static NTFieldPtr ntField = NTField::get();
 
 namespace detail {
 
-static NTFieldPtr ntField = NTField::get();
-
 
 StructureConstPtr NTUnionBuilder::createStructure()
 {