1 files changed, 6 insertions, 0 deletions
diff --git a/core/Profiler.php b/core/Profiler.php
index e842994a8f..e3bbfb47e3 100644
--- a/core/Profiler.php
+++ b/core/Profiler.php
@@ -273,6 +273,12 @@ class Profiler
                 $out .= "<a href='$baseUrl'>$baseUrl</a>";
                 $out .= "\n\n";
 
+                if (Development::isEnabled()) {
+                    $out .= "WARNING: Development mode is enabled. Many runtime optimizations are not applied in development mode. ";
+                    $out .= "Unless you intend to profile Piwik in development mode, your profile may not be accurate.";
+                    $out .= "\n\n";
+                }
+
                 echo $out;
             } else {
                 Profiler::setProfilingRunIds($runs);