diff --git a/src/de/inetsoftware/jwebassembly/binary/BinaryModuleWriter.java b/src/de/inetsoftware/jwebassembly/binary/BinaryModuleWriter.java
index a35f378..481eaa7 100644
--- a/src/de/inetsoftware/jwebassembly/binary/BinaryModuleWriter.java
+++ b/src/de/inetsoftware/jwebassembly/binary/BinaryModuleWriter.java
@@ -644,6 +644,10 @@ public class BinaryModuleWriter extends ModuleWriter implements InstructionOpcod
                 codeStream.write( BR );
                 codeStream.writeVaruint32( (Integer)data );
                 break;
+            case BR_IF:
+                codeStream.write( BR_IF );
+                codeStream.writeVaruint32( (Integer)data );
+                break;
             case BR_TABLE:
                 codeStream.write( BR_TABLE );
                 int[] targets = (int[])data;
diff --git a/src/de/inetsoftware/jwebassembly/text/TextModuleWriter.java b/src/de/inetsoftware/jwebassembly/text/TextModuleWriter.java
index b061ba3..e6c7eae 100644
--- a/src/de/inetsoftware/jwebassembly/text/TextModuleWriter.java
+++ b/src/de/inetsoftware/jwebassembly/text/TextModuleWriter.java
@@ -279,6 +279,9 @@ public class TextModuleWriter extends ModuleWriter {
             case BR:
                 name = "br " + data;
                 break;
+            case BR_IF:
+                name = "br_if " + data;
+                break;
             case BR_TABLE:
                 StringBuilder builder = new StringBuilder( "br_table");
                 for( int i : (int[])data ) {