diff --git a/src/fix_shake.cpp b/src/fix_shake.cpp
index d4c6c8abaf..ab38ee793b 100644
--- a/src/fix_shake.cpp
+++ b/src/fix_shake.cpp
@@ -1345,7 +1345,7 @@ void FixShake::shake2(int m)
 
   double determ = b*b - 4.0*a*c;
   if (determ < 0.0) {
-    error->warning("Shake determinant < 0.0");
+    error->warning("Shake determinant < 0.0",0);
     determ = 0.0;
   }