diff --git a/ompi/datatype/datatype_internal.h b/ompi/datatype/datatype_internal.h
index 456d061280..fbf5a09c2a 100644
--- a/ompi/datatype/datatype_internal.h
+++ b/ompi/datatype/datatype_internal.h
@@ -332,6 +332,8 @@ do { \
 #define COMPUTE_SPECIFIC_CHECKSUM( DATA, LENGTH, ADLER32 )
 #endif  /* OMPI_REQUIRE_DATA_VALIDATION */
 
+OMPI_DECLSPEC int32_t ompi_ddt_print_args( const ompi_datatype_t* pData );
+
 #if defined(c_plusplus) || defined(__cplusplus)
 }
 #endif
diff --git a/ompi/datatype/dt_module.c b/ompi/datatype/dt_module.c
index f585aa54f8..8aa69a201a 100644
--- a/ompi/datatype/dt_module.c
+++ b/ompi/datatype/dt_module.c
@@ -732,5 +732,8 @@ void ompi_ddt_dump( const ompi_datatype_t* pData )
     }
     buffer[index] = '\0';  /* make sure we end the string with 0 */
     opal_output( 0, "%s\n", buffer );
+
+    ompi_ddt_print_args( pData );
+
     free(buffer);
 }