diff --git a/.gitignore b/.gitignore
index 7f0b629fdd..e35a85685c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@ build
 compile_commands.json
 .cache
 .DS_Store
+plugin/att/__pycache__
diff --git a/plugin/att/att.cpp b/plugin/att/att.cpp
index 2a3a03c22a..1b5cd9fe64 100644
--- a/plugin/att/att.cpp
+++ b/plugin/att/att.cpp
@@ -45,6 +45,8 @@
 #include "rocprofiler_plugin.h"
 #include "../utils.h"
 
+#define ATT_FILENAME_MAXBYTES 96
+
 namespace {
 
 class att_plugin_t {
@@ -79,6 +81,10 @@ class att_plugin_t {
 
     std::string name_demangled = rocmtools::truncate_name(rocmtools::cxx_demangle(kernel_name_c));
 
+    if (name_demangled.size() > ATT_FILENAME_MAXBYTES) { // Limit filename size
+      name_demangled = name_demangled.substr(0, ATT_FILENAME_MAXBYTES);
+    }
+
     // Get the number of shader engine traces
     int se_num = att_tracer_record->shader_engine_data_count;
     std::string outpath;