diff --git a/src/Base64Stream.cc b/src/Base64Stream.cc
index 4005f43..5d02aae 100644
--- a/src/Base64Stream.cc
+++ b/src/Base64Stream.cc
@@ -39,6 +39,4 @@ ostream & Base64Stream::dumpto(ostream & out)
 
 const char * Base64Stream::base64_encoding = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
-ostream & operator << (ostream & out, Base64Stream bf) { return bf.dumpto(out); }
-
 } //namespace pdf2htmlEX
diff --git a/src/Base64Stream.h b/src/Base64Stream.h
index 40eda3d..759515f 100644
--- a/src/Base64Stream.h
+++ b/src/Base64Stream.h
@@ -24,7 +24,11 @@ private:
     static const char * base64_encoding;
 };
 
-std::ostream & operator << (std::ostream & out, Base64Stream bf);
+inline 
+std::ostream & operator << (std::ostream & out, Base64Stream bs)
+{
+    return bs.dumpto(out);
+}
 
 } //namespace pdf2htmlEX
 #endif //BASE64STREAM_H__