diff --git a/pcap-bt-linux.c b/pcap-bt-linux.c
index 254ab97633..c951a7e2d7 100644
--- a/pcap-bt-linux.c
+++ b/pcap-bt-linux.c
@@ -137,7 +137,8 @@ bt_findalldevs(pcap_if_t **alldevsp, char *err_str)
 pcap_t *
 bt_create(const char *device, char *ebuf, int *is_ours)
 {
-	const char *cp, *cpend;
+	const char *cp;
+	char *cpend;
 	long devnum;
 	pcap_t *p;
 
diff --git a/pcap-can-linux.c b/pcap-can-linux.c
index b11efcc9cc..f6a3925ec0 100644
--- a/pcap-can-linux.c
+++ b/pcap-can-linux.c
@@ -87,7 +87,8 @@ can_findalldevs(pcap_if_t **devlistp, char *errbuf)
 pcap_t *
 can_create(const char *device, char *ebuf, int *is_ours)
 {
-	const char *cp, *cpend;
+	const char *cp;
+	char *cpend;
 	long devnum;
 	pcap_t* p;
 
diff --git a/pcap-canusb-linux.c b/pcap-canusb-linux.c
index 649dabfd4f..a403ab4d1a 100644
--- a/pcap-canusb-linux.c
+++ b/pcap-canusb-linux.c
@@ -198,7 +198,8 @@ static libusb_device_handle* canusb_opendevice(struct libusb_context *ctx, char*
 pcap_t *
 canusb_create(const char *device, char *ebuf, int *is_ours)
 { 
-    const char *cp, *cpend;
+    const char *cp;
+    char *cpend;
     long devnum;
     pcap_t* p;
   		
diff --git a/pcap-dag.c b/pcap-dag.c
index 8c93f6a400..847a556f41 100644
--- a/pcap-dag.c
+++ b/pcap-dag.c
@@ -834,7 +834,8 @@ static int dag_activate(pcap_t* handle)
 
 pcap_t *dag_create(const char *device, char *ebuf, int *is_ours)
 {
-	const char *cp, *cpend;
+	const char *cp;
+	char *cpend;
 	long devnum;
 	pcap_t *p;
 
diff --git a/pcap-usb-linux.c b/pcap-usb-linux.c
index 0920cf395f..26f6189706 100644
--- a/pcap-usb-linux.c
+++ b/pcap-usb-linux.c
@@ -286,7 +286,8 @@ probe_devices(int bus)
 pcap_t *
 usb_create(const char *device, char *ebuf, int *is_ours)
 {
-	const char *cp, *cpend;
+	const char *cp;
+	char *cpend;
 	long devnum;
 	pcap_t *p;