diff --git a/asm-util/src/main/java/org/objectweb/asm/util/TraceSignatureVisitor.java b/asm-util/src/main/java/org/objectweb/asm/util/TraceSignatureVisitor.java
index 1b1bf26478304245886ff0484b8aea75a02b4bd3..dda6df37d3c61f4f1e2dd3add650be3fc1a40f74 100644
--- a/asm-util/src/main/java/org/objectweb/asm/util/TraceSignatureVisitor.java
+++ b/asm-util/src/main/java/org/objectweb/asm/util/TraceSignatureVisitor.java
@@ -217,7 +217,8 @@ public final class TraceSignatureVisitor extends SignatureVisitor {
 
   @Override
   public void visitTypeVariable(final String name) {
-    declaration.append(name);
+    declaration.append(separator).append(name);
+    separator = "";
     endType();
   }
 
diff --git a/asm-util/src/test/java/org/objectweb/asm/util/TraceSignatureVisitorTest.java b/asm-util/src/test/java/org/objectweb/asm/util/TraceSignatureVisitorTest.java
index a9527bd29071d6be1982ffa4f4e832737db14e25..ec0dfaa626b7d053d2ded5062837ed176db7b7a2 100644
--- a/asm-util/src/test/java/org/objectweb/asm/util/TraceSignatureVisitorTest.java
+++ b/asm-util/src/test/java/org/objectweb/asm/util/TraceSignatureVisitorTest.java
@@ -73,6 +73,11 @@ public class TraceSignatureVisitorTest {
       "false",
       "<K extends java.lang.Enum<K>, V> extends java.util.AbstractMap<K, V> implements java.io.Serializable, java.lang.Cloneable",
       "<K:Ljava/lang/Enum<TK;>;V:Ljava/lang/Object;>Ljava/util/AbstractMap<TK;TV;>;Ljava/io/Serializable;Ljava/lang/Cloneable;"
+    },
+    {
+      "false",
+      "<T, R extends T>",
+      "<T:Ljava/lang/Object;R:TT;>Ljava/lang/Object;"
     }
   };