1 files changed, 4 insertions, 1 deletions
diff --git a/op.h b/op.h
index 0f54a67095..5fbce838ea 100644
--- a/op.h
+++ b/op.h
@@ -289,7 +289,10 @@ struct pmop {
 
 #ifdef USE_ITHREADS
 #define PM_GETRE(o)     (INT2PTR(REGEXP*,SvIVX(PL_regex_pad[(o)->op_pmoffset])))
-#define PM_SETRE(o,r)   STMT_START { SV* sv = PL_regex_pad[(o)->op_pmoffset]; sv_setiv(sv, PTR2IV(r)); } STMT_END
+#define PM_SETRE(o,r)   STMT_START { \
+                            SV* const sv = PL_regex_pad[(o)->op_pmoffset]; \
+                            sv_setiv(sv, PTR2IV(r)); \
+                        } STMT_END
 #define PM_GETRE_SAFE(o) (PL_regex_pad ? PM_GETRE(o) : (REGEXP*)0)
 #define PM_SETRE_SAFE(o,r) if (PL_regex_pad) PM_SETRE(o,r)
 #else