diff --git a/expr.cpp b/expr.cpp
index 60d9ce66..9f75ab08 100644
--- a/expr.cpp
+++ b/expr.cpp
@@ -3544,9 +3544,14 @@ FunctionCallExpr::FunctionCallExpr(Expr *f, ExprList *a, SourcePos p,
     : Expr(p), isLaunch(il) {
     func = f;
     args = a;
-    launchCountExpr[0] = lce[0];
-    launchCountExpr[1] = lce[1];
-    launchCountExpr[2] = lce[2];
+    if (lce != NULL)
+    {
+      launchCountExpr[0] = lce[0];
+      launchCountExpr[1] = lce[1];
+      launchCountExpr[2] = lce[2];
+    }
+    else
+      launchCountExpr[0] = launchCountExpr[1] = launchCountExpr[2] = NULL;
 }
 
 
diff --git a/expr.h b/expr.h
index 0d46191b..e4d7e07b 100644
--- a/expr.h
+++ b/expr.h
@@ -247,7 +247,7 @@ class FunctionCallExpr : public Expr {
 public:
     FunctionCallExpr(Expr *func, ExprList *args, SourcePos p,
                      bool isLaunch = false, 
-                     Expr *launchCountExpr[3] = (Expr*[3]){NULL, NULL, NULL});
+                     Expr *launchCountExpr[3] = NULL);
 
     llvm::Value *GetValue(FunctionEmitContext *ctx) const;
     llvm::Value *GetLValue(FunctionEmitContext *ctx) const;