diff --git a/e2e/multipart/controller/controller_initializer.go b/e2e/multipart/controller/controller_initializer.go
index 0145c1ac..021878f1 100644
--- a/e2e/multipart/controller/controller_initializer.go
+++ b/e2e/multipart/controller/controller_initializer.go
@@ -56,6 +56,7 @@ func NewControllers(
 					return
 				}
 
+				c.Logger().Errorf("process panic: %#v\n", recoverErr)
 				debug.PrintStack()
 
 				if httpErr, ok := recoverErr.(*echo.HTTPError); ok {
diff --git a/samples/empty_root/server/controller_initializer.go b/samples/empty_root/server/controller_initializer.go
index e628cc63..4b8c6836 100644
--- a/samples/empty_root/server/controller_initializer.go
+++ b/samples/empty_root/server/controller_initializer.go
@@ -56,6 +56,7 @@ func NewControllers(
 					return
 				}
 
+				c.Logger().Errorf("process panic: %#v\n", recoverErr)
 				debug.PrintStack()
 
 				if httpErr, ok := recoverErr.(*echo.HTTPError); ok {
diff --git a/samples/standard/server/controller_initializer.go b/samples/standard/server/controller_initializer.go
index e9570629..8b4ac1e0 100644
--- a/samples/standard/server/controller_initializer.go
+++ b/samples/standard/server/controller_initializer.go
@@ -56,6 +56,7 @@ func NewControllers(
 					return
 				}
 
+				c.Logger().Errorf("process panic: %#v\n", recoverErr)
 				debug.PrintStack()
 
 				if httpErr, ok := recoverErr.(*echo.HTTPError); ok {