diff --git a/Eigen/src/Core/arch/AltiVec/PacketMath.h b/Eigen/src/Core/arch/AltiVec/PacketMath.h
index 37398de15..d9ddb5e35 100644
--- a/Eigen/src/Core/arch/AltiVec/PacketMath.h
+++ b/Eigen/src/Core/arch/AltiVec/PacketMath.h
@@ -2708,7 +2708,7 @@ template<> struct packet_traits<double> : default_packet_traits
     HasAbs  = 1,
     HasSin  = 0,
     HasCos  = 0,
-    HasATan = 1,
+    HasATan = 0,
     HasLog  = 0,
     HasExp  = 1,
     HasSqrt = 1,