diff --git a/tools/chunks/README.md b/tools/chunks/README.md
index a3b05fd..2bdd8ff 100644
--- a/tools/chunks/README.md
+++ b/tools/chunks/README.md
@@ -37,7 +37,7 @@
   [A Practical Congestion Control Scheme for Named Data
   Networking](https://www.researchgate.net/publication/306259672_A_Practical_Congestion_Control_Scheme_for_Named_Data_Networking)
 
-The default Interest pipeline type is `fixed`.
+The default Interest pipeline type is `aimd`.
 
 ## Usage examples
 
diff --git a/tools/chunks/catchunks/ndncatchunks.cpp b/tools/chunks/catchunks/ndncatchunks.cpp
index 822194a..768dd7a 100644
--- a/tools/chunks/catchunks/ndncatchunks.cpp
+++ b/tools/chunks/catchunks/ndncatchunks.cpp
@@ -51,7 +51,7 @@
   std::string programName(argv[0]);
   Options options;
   std::string discoverType("iterative");
-  std::string pipelineType("fixed");
+  std::string pipelineType("aimd");
   size_t maxPipelineSize(1);
   int maxRetriesAfterVersionFound(0);
   int64_t discoveryTimeoutMs(300);