X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=blobdiff_plain;f=src%2Finput%2Fwav.c;h=f2d5db0dfcc21075293c3d9350573aff820410e8;hp=271bacef19b9162aed32ab396a347579cbcee87b;hb=c1aae90038456a61d0f9313d34e6107c3440d3e7;hpb=76598cda5465e74e7427b5613f5859f02c2d2ad6

diff --git a/src/input/wav.c b/src/input/wav.c
index 271bacef..f2d5db0d 100644
--- a/src/input/wav.c
+++ b/src/input/wav.c
@@ -24,7 +24,7 @@
 #include <ctype.h>
 #include <string.h>
 #include <stdint.h>
-#include "libsigrok.h"
+#include <libsigrok/libsigrok.h>
 #include "libsigrok-internal.h"
 
 #define LOG_PREFIX "input/wav"
@@ -165,8 +165,7 @@ static int find_data_chunk(GString *buf, int initial_offset)
 			/* Skip into the samples. */
 			return offset + 8;
 		for (i = 0; i < 4; i++) {
-			if (!isalpha(buf->str[offset + i])
-					&& !isascii(buf->str[offset + i])
+			if (!isalnum(buf->str[offset + i])
 					&& !isblank(buf->str[offset + i]))
 				/* Doesn't look like a chunk ID. */
 				return -1;