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-rw-r--r--libguile/throw.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libguile/throw.c b/libguile/throw.c
index 5fe235159..82a402541 100644
--- a/libguile/throw.c
+++ b/libguile/throw.c
@@ -87,7 +87,7 @@ catch (SCM tag, SCM thunk, SCM handler, SCM pre_unwind_handler)
scm_t_dynamic_state *dynamic_state = SCM_I_CURRENT_THREAD->dynamic_state;
jmp_buf registers;
const void *prev_cookie;
- scm_t_ptrdiff saved_stack_depth;
+ ptrdiff_t saved_stack_depth;
if (!scm_is_eq (tag, SCM_BOOL_T) && !scm_is_symbol (tag))
scm_wrong_type_arg ("catch", 1, tag);