diff --git a/src/nmea_gps/nmea_gps.cxx b/src/nmea_gps/nmea_gps.cxx
index 588ccdfb..2e8a09c4 100644
--- a/src/nmea_gps/nmea_gps.cxx
+++ b/src/nmea_gps/nmea_gps.cxx
@@ -616,3 +616,10 @@ std::string NMEAGPS::__str__()
 
     return oss.str();
 }
+
+std::string coord_DD::__str__()
+{
+    std::ostringstream oss;
+    oss << latitude << ", " << longitude;
+    return oss.str();
+}
diff --git a/src/nmea_gps/nmea_gps.hpp b/src/nmea_gps/nmea_gps.hpp
index 6696c775..b16bde8f 100644
--- a/src/nmea_gps/nmea_gps.hpp
+++ b/src/nmea_gps/nmea_gps.hpp
@@ -79,6 +79,11 @@ namespace upm {
         double latitude = 0.0;
         /** Longitude in decimal degrees */
         double longitude = 0.0;
+        /**
+         * Provide a string representation of this structure.
+         * @return String representing coordinates
+         */
+        std::string __str__();
     };
 
     /** Satellite structure definition */
diff --git a/src/nmea_gps/nmea_gps.i b/src/nmea_gps/nmea_gps.i
index b5308cf8..97529eff 100644
--- a/src/nmea_gps/nmea_gps.i
+++ b/src/nmea_gps/nmea_gps.i
@@ -13,6 +13,7 @@ JAVA_JNI_LOADLIBRARY(javaupm_nmea_gps)
 %feature("python:slot", "tp_str", functype="reprfunc") upm::satellite::__str__;
 %feature("python:slot", "tp_str", functype="reprfunc") upm::nmeatxt::__str__;
 %feature("python:slot", "tp_str", functype="reprfunc") upm::NMEAGPS::__str__;
+%feature("python:slot", "tp_str", functype="reprfunc") upm::coord_DD::__str__;
 #endif
 /* END Python syntax */