diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index bbc50d6..0c7da0e 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -184,8 +184,8 @@
       // FIXME: This isn't correct for methods (results in bogus warning).
       // Get the last formal in the current function.
       const ParmVarDecl *LastArg;
-      if (getCurFunctionDecl())
-        LastArg = *(getCurFunctionDecl()->param_end()-1);
+      if (FunctionDecl *FD = getCurFunctionDecl())
+        LastArg = *(FD->param_end()-1);
       else
         LastArg = *(getCurMethodDecl()->param_end()-1);
       SecondArgIsLastNamedArgument = PV == LastArg;