diff --git a/external/redland/UnpackedTarball_redland.mk b/external/redland/UnpackedTarball_redland.mk
index 56a4fbd6c3f9..8b7b27552d9b 100644
--- a/external/redland/UnpackedTarball_redland.mk
+++ b/external/redland/UnpackedTarball_redland.mk
@@ -23,6 +23,7 @@ $(eval $(call gb_UnpackedTarball_add_patches,redland,\
 	$(if $(filter ANDROID,$(OS)),external/redland/redland/redland-android.patch.1) \
 	$(if $(filter WNTGCC,$(OS)$(COM)),external/redland/redland/redland-mingw.patch.1) \
 	$(if $(CROSS_COMPILING),external/redland/redland/redland-xcompile.patch.1) \
+	external/redland/redland/redland-format.patch.0 \
 ))
 
 # vim: set noet sw=4 ts=4:
diff --git a/external/redland/redland/redland-format.patch.0 b/external/redland/redland/redland-format.patch.0
new file mode 100644
index 000000000000..7bd62a8bb591
--- /dev/null
+++ b/external/redland/redland/redland-format.patch.0
@@ -0,0 +1,10 @@
+--- src/rdf_log.c
++++ src/rdf_log.c
+@@ -136,6 +136,7 @@
+       char *buffer = LIBRDF_MALLOC(char*, slocator_len + 2);
+       *buffer=' ';
+       raptor_locator_format(buffer + 1, slocator_len, (raptor_locator*)locator);
++      buffer[slocator_len + 1] = '\0';
+       fputs(buffer, stderr);
+       LIBRDF_FREE(char*, buffer);
+     }