diff --git a/workflows/family.wdl b/workflows/family.wdl
index 94d787c3..538addf7 100644
--- a/workflows/family.wdl
+++ b/workflows/family.wdl
@@ -172,7 +172,7 @@ workflow humanwgs_family {
   Map[String, Array[String]] stats = {
     'sample_id': sample_id,
     'num_reads': upstream.stat_num_reads,
-    'read_length_min': upstream.stat_read_length_mean,
+    'read_length_mean': upstream.stat_read_length_mean,
     'read_length_median': upstream.stat_read_length_median,
     'read_quality_mean': upstream.stat_read_quality_mean,
     'read_quality_median': upstream.stat_read_quality_median,
diff --git a/workflows/singleton.wdl b/workflows/singleton.wdl
index 255a0bba..60f4d56a 100644
--- a/workflows/singleton.wdl
+++ b/workflows/singleton.wdl
@@ -146,7 +146,7 @@ workflow humanwgs_singleton {
   Map[String, Array[String]] stats = {
     'sample_id': [sample_id],
     'num_reads': [upstream.stat_num_reads],
-    'read_length_min': [upstream.stat_read_length_mean],
+    'read_length_mean': [upstream.stat_read_length_mean],
     'read_length_median': [upstream.stat_read_length_median],
     'read_quality_mean': [upstream.stat_read_quality_mean],
     'read_quality_median': [upstream.stat_read_quality_median],