diff --git a/sumpy/kernel.py b/sumpy/kernel.py
index e29ac5167051e5d781a9fdb331d97fb3fef84df2..646df2a52353f7760ddb4e1e15716c6337679026 100644
--- a/sumpy/kernel.py
+++ b/sumpy/kernel.py
@@ -518,7 +518,7 @@ class StressletKernel(ExpressionKernel):
             expr = (
                 d[icomp]*d[jcomp]*d[kcomp]/r**5
                 )
-            scaling = -3/(4*var("pi"))
+            scaling = 3/(4*var("pi"))
 
         elif dim is None:
             expr = None