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-rw-r--r--src/ptx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/ptx.c b/src/ptx.c
index d19c66e40..1f0e9c921 100644
--- a/src/ptx.c
+++ b/src/ptx.c
@@ -1200,7 +1200,7 @@ print_field (BLOCK field)
static void
fix_output_parameters (void)
{
- int file_index; /* index in text input file arrays */
+ size_t file_index; /* index in text input file arrays */
int line_ordinal; /* line ordinal value for reference */
char ordinal_string[12]; /* edited line ordinal for reference */
int reference_width; /* width for the whole reference */