diff --git a/gdb.c b/gdb.c
index 06e0bff..1f50e99 100644
--- a/gdb.c
+++ b/gdb.c
@@ -179,18 +179,6 @@ static void gdb_packet_end(struct gdb_data *data)
 	gdb_printf(data, "#%02x", c);
 }
 
-static int hexval(int c)
-{
-	if (isdigit(c))
-		return c - '0';
-	if (isupper(c))
-		return c - 'A' + 10;
-	if (islower(c))
-		return c - 'a' + 10;
-
-	return 0;
-}
-
 static int gdb_send(struct gdb_data *data, const char *msg)
 {
 	gdb_packet_start(data);
diff --git a/srec.c b/srec.c
index 7d3aa68..dac2d29 100644
--- a/srec.c
+++ b/srec.c
@@ -45,16 +45,6 @@ int srec_check(FILE *in)
 	return 1;
 }
 
-static int hexval(int c)
-{
-	if (isdigit(c))
-		return c - '0';
-	if (c >= 'A' && c <= 'F')
-		return c - 'A' + 10;
-
-	return c - 'a' + 10;
-}
-
 int srec_extract(FILE *in, binfile_imgcb_t cb, void *user_data)
 {
 	char buf[128];
diff --git a/util.c b/util.c
index 0fc673b..a42123e 100644
--- a/util.c
+++ b/util.c
@@ -317,3 +317,15 @@ void debug_hexdump(const char *label, const uint8_t *data, int len)
 		offset += i;
 	}
 }
+
+int hexval(int c)
+{
+	if (isdigit(c))
+		return c - '0';
+	if (isupper(c))
+		return c - 'A' + 10;
+	if (islower(c))
+		return c - 'a' + 10;
+
+	return 0;
+}
diff --git a/util.h b/util.h
index 49f0359..3246d5e 100644
--- a/util.h
+++ b/util.h
@@ -57,4 +57,6 @@ static inline int ishex(int c)
 	return isdigit(c) || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f');
 }
 
+int hexval(int c);
+
 #endif