diff --git a/Source/cmVisualStudio10TargetGenerator.cxx b/Source/cmVisualStudio10TargetGenerator.cxx
index 3c7745d1c..9256b8955 100644
--- a/Source/cmVisualStudio10TargetGenerator.cxx
+++ b/Source/cmVisualStudio10TargetGenerator.cxx
@@ -1123,7 +1123,7 @@ void cmVisualStudio10TargetGenerator::WriteAllSources()
       {
       tool = "ClCompile";
       }
-    else if (lang == "ASM_NASM" &&
+    else if (lang == "ASM_MASM" &&
              this->GlobalGenerator->IsMasmEnabled())
       {
       tool = "MASM";