diff --git a/tools/cooja/config/external_tools_win32.config b/tools/cooja/config/external_tools_win32.config
index d6c61cac2..2d5dd7e4a 100644
--- a/tools/cooja/config/external_tools_win32.config
+++ b/tools/cooja/config/external_tools_win32.config
@@ -7,10 +7,13 @@ LINK_COMMAND_1 = mingw32-gcc -shared -Wl,-Map=$(MAPFILE) -Wl,--add-stdcall-alias
 LINK_COMMAND_2 = -L/usr/lib/mingw
 PARSE_WITH_COMMAND = true
 
-COMMAND_VAR_NAME_ADDRESS_SIZE = ^[_]([^.].*?) <SECTION> ([0-9a-fA-F]+) ([0-9a-fA-F])*
-COMMAND_DATA_START = ^__data_start__[ \t]D[ \t]([0-9A-Fa-f]*)[ \t]*$
-COMMAND_DATA_END = ^__data_end__[ \t]D[ \t]([0-9A-Fa-f]*)[ \t]*$
-COMMAND_BSS_START = ^__bss_start__[ \t]B[ \t]([0-9A-Fa-f]*)[ \t]*$
-COMMAND_BSS_END = ^__bss_end__[ \t]B[ \t]([0-9A-Fa-f]*)[ \t]*$
-COMMAND_READONLY_START = ^.rodata[ \t]r[ \t]([0-9A-Fa-f]*)[ \t]*$
-COMMAND_READONLY_END = ^.eh_frame_hdr[ \t]r[ \t]([0-9A-Fa-f]*)[ \t]*$
+# Hack: nm with arguments -S --size-sort does not display __data_start symbols
+PARSE_COMMAND=sh -c "/bin/nm -aP --size-sort -S $(LIBFILE) && /bin/nm -aP $(LIBFILE)"
+
+COMMAND_VAR_NAME_ADDRESS_SIZE = ^[_]([^.].*?)[ \t]<SECTION>[ \t]([0-9a-fA-F]+)[ \t]([0-9a-fA-F]+)
+COMMAND_DATA_START = ^__data_start__[ \t]D[ \t]([0-9A-Fa-f]*)
+COMMAND_DATA_END = ^__data_end__[ \t]D[ \t]([0-9A-Fa-f]*)
+COMMAND_BSS_START = ^__bss_start__[ \t]B[ \t]([0-9A-Fa-f]*)
+COMMAND_BSS_END = ^__bss_end__[ \t]B[ \t]([0-9A-Fa-f]*)
+COMMAND_READONLY_START = ^.rodata[ \t]r[ \t]([0-9A-Fa-f]*)
+COMMAND_READONLY_END = ^.eh_frame_hdr[ \t]r[ \t]([0-9A-Fa-f]*)