diff --git a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2TemplateTests.java b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2TemplateTests.java
index 34fc0218c47..549fb0d78cf 100644
--- a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2TemplateTests.java
+++ b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2TemplateTests.java
@@ -5292,4 +5292,26 @@ public class AST2TemplateTests extends AST2BaseTest {
 	public void testFunctionWithVoidParamInTypeDeduction() throws Exception {
 		parseAndCheckBindings();
 	}
+	
+	//	template<typename T, unsigned length> struct Templ {
+	//		Templ(){}
+	//	};
+	//
+	//	template<> struct Templ<int, 5> {
+	//		Templ(){}
+	//      int e;
+	//	};
+	//
+	//	template<unsigned length> struct Templ<int, length> {
+	//		Templ(){}
+	//	};
+	//
+	//	int main() {
+	//		Templ<int, 5> iFive;
+	//      iFive.e= 0;
+	//		return 0;
+	//	}
+	public void testPartialSpecAfterExplicitInst_339475() throws Exception {
+		parseAndCheckBindings();
+	}
 }
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPTemplates.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPTemplates.java
index 282f9e2539b..a8c9c6cb1b7 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPTemplates.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPTemplates.java
@@ -220,6 +220,10 @@ public class CPPTemplates {
 				map.put(param, pack);
 			}
 
+			ICPPTemplateInstance prim= getInstance(template, arguments, isDef);
+			if (prim != null && prim.isExplicitSpecialization())
+				return prim;
+
 			IBinding result= CPPTemplates.selectSpecialization(template, arguments, isDef);
 			if (result != null)
 				return result;