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-rw-r--r--src/w32.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/w32.c b/src/w32.c
index 745642e946b..4024ed9512e 100644
--- a/src/w32.c
+++ b/src/w32.c
@@ -1963,6 +1963,7 @@ get_emacs_configuration_options (void)
size += strlen (options[i]);
options_buffer = xmalloc (size + 1);
+ options_buffer[0] = '\0';
for (i = 0; options[i]; i++)
strcat (options_buffer, options[i]);