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-rw-r--r--Src/pattern.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Src/pattern.c b/Src/pattern.c
index df5e602ca..17cd40c23 100644
--- a/Src/pattern.c
+++ b/Src/pattern.c
@@ -3622,7 +3622,7 @@ patmatchrange(char *range, int ch, int *indptr, int *mtp)
 		    return 1;
 		break;
 	    case PP_PRINT:
-		if (isprint(ch))
+		if (ISPRINT(ch))
 		    return 1;
 		break;
 	    case PP_PUNCT: