diff --git a/modules/HIERARCHY b/modules/HIERARCHY
index 61e1604..0dab8a3 100644
--- a/modules/HIERARCHY
+++ b/modules/HIERARCHY
@@ -429,6 +429,7 @@ Quad
 		QFN32-HVQFN
 		QFN32-Freescale
 		QFN48-Freescale
+		QFN48-nRF51
 	QFP
 		QFP32
 		QFP48
diff --git a/modules/qfn.fpd b/modules/qfn.fpd
index 1bc523b..0f06939 100644
--- a/modules/qfn.fpd
+++ b/modules/qfn.fpd
@@ -169,6 +169,7 @@ table
     { 32, "HVQFN", 0.3mm, 1.08mm, 4.85mm, 4.85mm, 0.65mm, 6.9mm, 6.9mm, 1.7mm, 2, 2, 1mm, 1mm, 0 }
     { 32, "Freescale", 0.25mm, 0.9mm, 3.6mm, 3.6mm, 0.5mm, 5mm, 5mm, 1.2mm, 2, 2, 0.9mm, 0.9mm, 1 }
     { 48, "Freescale", 0.25mm, 0.9mm, 5.1mm, 5.1mm, 0.5mm, 7mm, 7mm, 1.1mm, 3, 3, 0.8mm, 0.8mm, 0 }
+    { 48, "nRF51", 0.2mm, 0.8mm, 4.6mm, 4.6mm, 0.4mm, 6mm, 6mm, 1mm, 3, 3, 0.7mm, 0.7mm, 0 }
 
 set w = 5mil