diff --git a/ChangeLog b/ChangeLog
index d2c4732..8a41c81 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -8,6 +8,12 @@
 	* rational/transcendental/cl_RA_logp.cc: fix bug where base is
 	reciprocal of an integer.
 
+2004-06-18  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+	* src/complex/ring/cl_C_ring.cc, src/integer/ring/cl_I_ring.cc,
+	src/rational/ring/cl_RA_ring.cc, src/real/ring/cl_R_ring.cc:
+	Make template specializations explicit.
+
 2004-06-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
 	* benchmarks/timebench1.cc, benchmarks/timebench2a.LiDIA.cc,
diff --git a/src/complex/ring/cl_C_ring.cc b/src/complex/ring/cl_C_ring.cc
index aa01740..5a576ec 100644
--- a/src/complex/ring/cl_C_ring.cc
+++ b/src/complex/ring/cl_C_ring.cc
@@ -153,6 +153,7 @@ cl_class cl_class_complex_ring = {
 };
 
 // Constructor.
+template <>
 inline cl_complex_ring::cl_specialized_number_ring ()
 	: cl_number_ring (new cl_heap_complex_ring()) {}
 
diff --git a/src/integer/ring/cl_I_ring.cc b/src/integer/ring/cl_I_ring.cc
index 5629e1f..0f4e6d7 100644
--- a/src/integer/ring/cl_I_ring.cc
+++ b/src/integer/ring/cl_I_ring.cc
@@ -150,6 +150,7 @@ cl_class cl_class_integer_ring = {
 };
 
 // Constructor.
+template <>
 inline cl_integer_ring::cl_specialized_number_ring ()
 	: cl_number_ring (new cl_heap_integer_ring()) {}
 
diff --git a/src/rational/ring/cl_RA_ring.cc b/src/rational/ring/cl_RA_ring.cc
index f1a4125..a6aef66 100644
--- a/src/rational/ring/cl_RA_ring.cc
+++ b/src/rational/ring/cl_RA_ring.cc
@@ -150,6 +150,7 @@ cl_class cl_class_rational_ring = {
 };
 
 // Constructor.
+template <>
 inline cl_rational_ring::cl_specialized_number_ring ()
 	: cl_number_ring (new cl_heap_rational_ring()) {}
 
diff --git a/src/real/ring/cl_R_ring.cc b/src/real/ring/cl_R_ring.cc
index 12bad45..f7330ce 100644
--- a/src/real/ring/cl_R_ring.cc
+++ b/src/real/ring/cl_R_ring.cc
@@ -154,6 +154,7 @@ cl_class cl_class_real_ring = {
 };
 
 // Constructor.
+template <>
 inline cl_real_ring::cl_specialized_number_ring ()
 	: cl_number_ring (new cl_heap_real_ring()) {}