diff --git a/CUETools.Codecs.FLACCL/FLACCLWriter.cs b/CUETools.Codecs.FLACCL/FLACCLWriter.cs
index 19cf9c4..ca10b42 100644
--- a/CUETools.Codecs.FLACCL/FLACCLWriter.cs
+++ b/CUETools.Codecs.FLACCL/FLACCLWriter.cs
@@ -2119,7 +2119,7 @@ namespace CUETools.Codecs.FLACCL
 			bitwriter.writebits(1, last);
 			bitwriter.writebits(7, (int)MetadataType.Padding);
 			bitwriter.writebits(24, (int)padlen);
-
+            bitwriter.flush();
 			return (int)padlen + 4;
 		}
 
diff --git a/CUETools.Codecs.FLAKE/FlakeWriter.cs b/CUETools.Codecs.FLAKE/FlakeWriter.cs
index 36b9309..1a1d733 100644
--- a/CUETools.Codecs.FLAKE/FlakeWriter.cs
+++ b/CUETools.Codecs.FLAKE/FlakeWriter.cs
@@ -1949,7 +1949,8 @@ new int[] { // 30
 			bitwriter.writebits(7, (int)MetadataType.Padding);
 			bitwriter.writebits(24, padlen);
 
-			return padlen + 4;
+            bitwriter.flush();
+            return padlen + 4;
 		}
 
 		int write_headers()