diff --git a/src/basic_serializer_map.cpp b/src/basic_serializer_map.cpp
index 35991f3e..5506aa79 100644
--- a/src/basic_serializer_map.cpp
+++ b/src/basic_serializer_map.cpp
@@ -8,7 +8,7 @@
 
 //  See http://www.boost.org for updates, documentation, and revision history.
 
-#if (defined _MSC_VER) && (_MSC_VER < 1300)
+#if (defined _MSC_VER) && (_MSC_VER == 1200)
 #  pragma warning (disable : 4786) // too long name, harmless warning
 #endif
 
diff --git a/src/basic_text_iprimitive.cpp b/src/basic_text_iprimitive.cpp
index 2b2a0f24..c67a9420 100644
--- a/src/basic_text_iprimitive.cpp
+++ b/src/basic_text_iprimitive.cpp
@@ -8,7 +8,7 @@
 
 //  See http://www.boost.org for updates, documentation, and revision history.
 
-#if (defined _MSC_VER) && (_MSC_VER < 1300)
+#if (defined _MSC_VER) && (_MSC_VER == 1200)
 #  pragma warning (disable : 4786) // too long name, harmless warning
 #endif
 
diff --git a/src/basic_text_oprimitive.cpp b/src/basic_text_oprimitive.cpp
index e26e709f..d8d98d69 100644
--- a/src/basic_text_oprimitive.cpp
+++ b/src/basic_text_oprimitive.cpp
@@ -8,7 +8,7 @@
 
 //  See http://www.boost.org for updates, documentation, and revision history.
 
-#if (defined _MSC_VER) && (_MSC_VER < 1300)
+#if (defined _MSC_VER) && (_MSC_VER == 1200)
 #  pragma warning (disable : 4786) // too long name, harmless warning
 #endif
 
diff --git a/src/basic_text_wiprimitive.cpp b/src/basic_text_wiprimitive.cpp
index ad2af766..4797485b 100644
--- a/src/basic_text_wiprimitive.cpp
+++ b/src/basic_text_wiprimitive.cpp
@@ -14,7 +14,7 @@
 #error "wide char i/o not supported on this platform"
 #else
 
-#if (defined _MSC_VER) && (_MSC_VER < 1300)
+#if (defined _MSC_VER) && (_MSC_VER == 1200)
 #  pragma warning (disable : 4786) // too long name, harmless warning
 #endif
 
diff --git a/src/basic_text_woprimitive.cpp b/src/basic_text_woprimitive.cpp
index 654a79bb..e13294e7 100644
--- a/src/basic_text_woprimitive.cpp
+++ b/src/basic_text_woprimitive.cpp
@@ -14,7 +14,7 @@
 #error "wide char i/o not supported on this platform"
 #else
 
-#if (defined _MSC_VER) && (_MSC_VER < 1300)
+#if (defined _MSC_VER) && (_MSC_VER == 1200)
 #  pragma warning (disable : 4786) // too long name, harmless warning
 #endif
 
diff --git a/src/basic_xml_grammar.ipp b/src/basic_xml_grammar.ipp
index fe802bf3..6b8fd641 100644
--- a/src/basic_xml_grammar.ipp
+++ b/src/basic_xml_grammar.ipp
@@ -8,7 +8,7 @@
 
 //  See http://www.boost.org for updates, documentation, and revision history.
 
-#if (defined _MSC_VER) && (_MSC_VER < 1300)
+#if (defined _MSC_VER) && (_MSC_VER == 1200)
 #  pragma warning (disable : 4786) // too long name, harmless warning
 #endif