diff --git a/repos/base-hw/src/bootstrap/log.cc b/repos/base-hw/src/bootstrap/log.cc
index 7887fd59d..2f77fa32a 100644
--- a/repos/base-hw/src/bootstrap/log.cc
+++ b/repos/base-hw/src/bootstrap/log.cc
@@ -14,6 +14,7 @@
 
 /* Genode includes */
 #include <base/log.h>
+#include <base/buffered_output.h>
 
 /* base-internal includes */
 #include <base/internal/globals.h>
diff --git a/repos/base/include/base/buffered_output.h b/repos/base/include/base/buffered_output.h
new file mode 100644
index 000000000..774a25180
--- /dev/null
+++ b/repos/base/include/base/buffered_output.h
@@ -0,0 +1,68 @@
+/*
+ * \brief  Implementation of the output interface that buffers characters
+ * \author Norman Feske
+ * \date   2016-05-03
+ */
+
+/*
+ * Copyright (C) 2016-2019 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU Affero General Public License version 3.
+ */
+
+#ifndef _INCLUDE__BASE__BUFFERED_OUTPUT_H_
+#define _INCLUDE__BASE__BUFFERED_OUTPUT_H_
+
+#include <base/output.h>
+
+namespace Genode { template <size_t, typename> class Buffered_output; }
+
+
+/**
+ * Implementation of the output interface that buffers characters
+ *
+ * \param BUF_SIZE  maximum number of characters to buffer before writing
+ * \param WRITE_FN  functor called to writing the buffered characters to a
+ *                  backend.
+ *
+ * The 'WRITE_FN' functor is called with a null-terminated 'char const *'
+ * as argument.
+ */
+template <Genode::size_t BUF_SIZE, typename BACKEND_WRITE_FN>
+class Genode::Buffered_output : public Output
+{
+	private:
+
+		BACKEND_WRITE_FN _write_fn;
+		char             _buf[BUF_SIZE];
+		unsigned         _num_chars = 0;
+
+		void _flush()
+		{
+			/* null-terminate string */
+			_buf[_num_chars] = 0;
+			_write_fn(_buf);
+
+			/* restart with empty buffer */
+			_num_chars = 0;
+		}
+
+	public:
+
+		Buffered_output(BACKEND_WRITE_FN const &write_fn) : _write_fn(write_fn) { }
+
+		void out_char(char c) override
+		{
+			/* ensure enough buffer space for complete escape sequence */
+			if ((c == 27) && (_num_chars + 8 > BUF_SIZE)) _flush();
+
+			_buf[_num_chars++] = c;
+
+			/* flush immediately on line break */
+			if (c == '\n' || _num_chars >= sizeof(_buf) - 1)
+				_flush();
+		}
+};
+
+#endif /* _INCLUDE__BASE__BUFFERED_OUTPUT_H_ */
diff --git a/repos/base/src/core/default_log.cc b/repos/base/src/core/default_log.cc
index 7e0e76eda..aed0fc910 100644
--- a/repos/base/src/core/default_log.cc
+++ b/repos/base/src/core/default_log.cc
@@ -14,10 +14,10 @@
 
 /* Genode includes */
 #include <base/log.h>
+#include <base/buffered_output.h>
 
 /* base-internal includes */
 #include <base/internal/globals.h>
-#include <base/internal/output.h>
 #include <base/internal/unmanaged_singleton.h>
 
 /* core includes */
diff --git a/repos/base/src/include/base/internal/output.h b/repos/base/src/include/base/internal/output.h
index efbe551b8..28d31f072 100644
--- a/repos/base/src/include/base/internal/output.h
+++ b/repos/base/src/include/base/internal/output.h
@@ -14,7 +14,6 @@
 #ifndef _INCLUDE__BASE__INTERNAL__OUTPUT_H_
 #define _INCLUDE__BASE__INTERNAL__OUTPUT_H_
 
-
 #include <base/output.h>
 
 
@@ -155,53 +154,4 @@ static inline void out_float(T value, unsigned base, unsigned length, OUT_CHAR_F
 	}
 }
 
-namespace Genode { template <size_t, typename> class Buffered_output; }
-
-
-/**
- * Implementation of the output interface that buffers characters
- *
- * \param BUF_SIZE  maximum number of characters to buffer before writing
- * \param WRITE_FN  functor called to writing the buffered characters to a
- *                  backend.
- *
- * The 'WRITE_FN' functor is called with a null-terminated 'char const *'
- * as argument.
- */
-template <Genode::size_t BUF_SIZE, typename BACKEND_WRITE_FN>
-class Genode::Buffered_output : public Output
-{
-	private:
-
-		BACKEND_WRITE_FN _write_fn;
-		char             _buf[BUF_SIZE];
-		unsigned         _num_chars = 0;
-
-		void _flush()
-		{
-			/* null-terminate string */
-			_buf[_num_chars] = 0;
-			_write_fn(_buf);
-
-			/* restart with empty buffer */
-			_num_chars = 0;
-		}
-
-	public:
-
-		Buffered_output(BACKEND_WRITE_FN const &write_fn) : _write_fn(write_fn) { }
-
-		void out_char(char c) override
-		{
-			/* ensure enough buffer space for complete escape sequence */
-			if ((c == 27) && (_num_chars + 8 > BUF_SIZE)) _flush();
-
-			_buf[_num_chars++] = c;
-
-			/* flush immediately on line break */
-			if (c == '\n' || _num_chars >= sizeof(_buf) - 1)
-				_flush();
-		}
-};
-
 #endif /* _INCLUDE__BASE__INTERNAL__OUTPUT_H_ */
diff --git a/repos/base/src/lib/base/default_log.cc b/repos/base/src/lib/base/default_log.cc
index 3ce9c8e24..ba3f2ea52 100644
--- a/repos/base/src/lib/base/default_log.cc
+++ b/repos/base/src/lib/base/default_log.cc
@@ -14,10 +14,10 @@
 /* Genode includes */
 #include <base/log.h>
 #include <log_session/log_session.h>
+#include <base/buffered_output.h>
 
 /* base-internal includes */
 #include <base/internal/globals.h>
-#include <base/internal/output.h>
 #include <base/internal/unmanaged_singleton.h>
 
 using namespace Genode;
diff --git a/repos/base/src/lib/base/raw_output.cc b/repos/base/src/lib/base/raw_output.cc
index 3230ad188..a9744e450 100644
--- a/repos/base/src/lib/base/raw_output.cc
+++ b/repos/base/src/lib/base/raw_output.cc
@@ -13,10 +13,10 @@
 
 /* Genode includes */
 #include <base/log.h>
+#include <base/buffered_output.h>
 
 /* base-internal includes */
 #include <base/internal/unmanaged_singleton.h>
-#include <base/internal/output.h>
 #include <base/internal/raw_write_string.h>