diff --git a/src/db/db/dbCompoundOperation.cc b/src/db/db/dbCompoundOperation.cc
index adaf30abc..dc9953582 100644
--- a/src/db/db/dbCompoundOperation.cc
+++ b/src/db/db/dbCompoundOperation.cc
@@ -859,7 +859,7 @@ namespace
   struct generic_result_adaptor
   {
   public:
-    generic_result_adaptor<T> (std::vector<std::unordered_set<T> > *results)
+    generic_result_adaptor (std::vector<std::unordered_set<T> > *results)
       : mp_results (results)
     {
       m_intermediate.reserve (results->size ());
diff --git a/src/db/db/dbCompoundOperation.h b/src/db/db/dbCompoundOperation.h
index 719e9e267..cfbd5d1b7 100644
--- a/src/db/db/dbCompoundOperation.h
+++ b/src/db/db/dbCompoundOperation.h
@@ -1758,7 +1758,7 @@ public:
    *  Creates a local operation which utilizes the operation tree. "node" is the root of the operation tree.
    *  Ownership of the node is *not* transferred to the local operation.
    */
-  compound_local_operation<TS, TI, TR> (CompoundRegionOperationNode *node)
+  compound_local_operation (CompoundRegionOperationNode *node)
     : mp_node (node)
   { }
 
@@ -1802,7 +1802,7 @@ public:
    *  Creates a local operation which utilizes the operation tree. "node" is the root of the operation tree.
    *  Ownership of the node is *not* transferred to the local operation.
    */
-  compound_local_operation_with_properties<TS, TI, TR> (CompoundRegionOperationNode *node, db::PropertyConstraint prop_constraint)
+  compound_local_operation_with_properties (CompoundRegionOperationNode *node, db::PropertyConstraint prop_constraint)
     : mp_node (node), m_prop_constraint (prop_constraint)
   {
     //  .. nothing yet ..
diff --git a/src/db/db/dbPropertiesFilter.h b/src/db/db/dbPropertiesFilter.h
index b11a0ae46..fbcb9fd10 100644
--- a/src/db/db/dbPropertiesFilter.h
+++ b/src/db/db/dbPropertiesFilter.h
@@ -69,19 +69,19 @@ class polygon_properties_filter
   : public PolygonFilter, public PropertiesFilter
 {
 public:
-  polygon_properties_filter<PolygonFilter> (const tl::Variant &name, const tl::GlobPattern &pattern, bool inverse)
+  polygon_properties_filter (const tl::Variant &name, const tl::GlobPattern &pattern, bool inverse)
     : PropertiesFilter (name, pattern, inverse)
   {
     //  .. nothing yet ..
   }
 
-  polygon_properties_filter<PolygonFilter> (const tl::Variant &name, const tl::Variant &value, bool inverse)
+  polygon_properties_filter(const tl::Variant &name, const tl::Variant &value, bool inverse)
     : PropertiesFilter (name, value, inverse)
   {
     //  .. nothing yet ..
   }
 
-  polygon_properties_filter<PolygonFilter> (const tl::Variant &name, const tl::Variant &from, const tl::Variant &to, bool inverse)
+  polygon_properties_filter (const tl::Variant &name, const tl::Variant &from, const tl::Variant &to, bool inverse)
     : PropertiesFilter (name, from, to, inverse)
   {
     //  .. nothing yet ..
@@ -103,19 +103,19 @@ class generic_properties_filter
   : public BasicFilter, public PropertiesFilter
 {
 public:
-  generic_properties_filter<BasicFilter, ShapeType> (const tl::Variant &name, const tl::GlobPattern &pattern, bool inverse)
+  generic_properties_filter (const tl::Variant &name, const tl::GlobPattern &pattern, bool inverse)
     : PropertiesFilter (name, pattern, inverse)
   {
     //  .. nothing yet ..
   }
 
-  generic_properties_filter<BasicFilter, ShapeType> (const tl::Variant &name, const tl::Variant &value, bool inverse)
+  generic_properties_filter (const tl::Variant &name, const tl::Variant &value, bool inverse)
     : PropertiesFilter (name, value, inverse)
   {
     //  .. nothing yet ..
   }
 
-  generic_properties_filter<BasicFilter, ShapeType> (const tl::Variant &name, const tl::Variant &from, const tl::Variant &to, bool inverse)
+  generic_properties_filter (const tl::Variant &name, const tl::Variant &from, const tl::Variant &to, bool inverse)
     : PropertiesFilter (name, from, to, inverse)
   {
     //  .. nothing yet ..
diff --git a/src/db/db/dbRegionLocalOperations.cc b/src/db/db/dbRegionLocalOperations.cc
index 274b1c334..186ed30db 100644
--- a/src/db/db/dbRegionLocalOperations.cc
+++ b/src/db/db/dbRegionLocalOperations.cc
@@ -89,7 +89,7 @@ struct simple_result_inserter
 {
   typedef TR value_type;
 
-  simple_result_inserter<TR> (std::unordered_set<TR> &result)
+  simple_result_inserter (std::unordered_set<TR> &result)
     : mp_result (&result)
   {
     //  .. nothing yet ..
diff --git a/src/gsi/gsi/gsiIterators.h b/src/gsi/gsi/gsiIterators.h
index 374102e8d..030d02686 100644
--- a/src/gsi/gsi/gsiIterators.h
+++ b/src/gsi/gsi/gsiIterators.h
@@ -40,7 +40,7 @@ template <class X, class Y> struct address_of;
 template<class X> 
 struct address_of<X, X> 
 {
-  address_of<X, X> () : b () { }
+  address_of () : b () { }
   const void *operator() (const X &x) const { b = x; return &b; }
   mutable X b;
 };
diff --git a/src/laybasic/unit_tests/layAnnotationShapes.cc b/src/laybasic/unit_tests/layAnnotationShapes.cc
index 98a142939..f6a8cd56a 100644
--- a/src/laybasic/unit_tests/layAnnotationShapes.cc
+++ b/src/laybasic/unit_tests/layAnnotationShapes.cc
@@ -34,7 +34,7 @@ class shape_as_user_object
   : public db::DUserObjectBase
 {
 public:
-  shape_as_user_object<Sh> (const Sh &sh)
+  shape_as_user_object (const Sh &sh)
     : m_shape (sh)
   { }
 
diff --git a/src/tl/tl/tlClassRegistry.h b/src/tl/tl/tlClassRegistry.h
index 6e5fd79a6..ec44b651d 100644
--- a/src/tl/tl/tlClassRegistry.h
+++ b/src/tl/tl/tlClassRegistry.h
@@ -217,7 +217,7 @@ public:
   /**
    *  @brief Constructor
    */
-  Registrar <X> () 
+  Registrar ()
     : mp_first (0)
   {
     //  .. nothing yet ..
diff --git a/src/tl/tl/tlEventsVar.h b/src/tl/tl/tlEventsVar.h
index bdac1ff62..5b0bbaca9 100644
--- a/src/tl/tl/tlEventsVar.h
+++ b/src/tl/tl/tlEventsVar.h
@@ -175,13 +175,13 @@ public:
   typedef typename receivers::iterator receivers_iterator;
 #endif
 
-  event<_TMPLARGLISTP> ()
+  event ()
     : mp_destroyed_sentinel (0)
   {
     //  .. nothing yet ..
   }
 
-  ~event<_TMPLARGLISTP> ()
+  ~event ()
   {
     if (mp_destroyed_sentinel) {
       *mp_destroyed_sentinel = true;