diff --git a/sdk/src/pixie/config.cpp b/sdk/src/pixie/config.cpp
index 0bb55061..e27c8d71 100644
--- a/sdk/src/pixie/config.cpp
+++ b/sdk/src/pixie/config.cpp
@@ -68,6 +68,7 @@ static const json default_config = {
         {"MultiplicityMaskH", {0}},
         {"MultiplicityMaskL", {0}},
         {"OffsetDAC", {34952}},
+        {"PAFlength", {119}},
         {"PSAlength", {0}},
         {"PSAoffset", {0}},
         {"PeakSample", {42}},