diff --git a/misc/isomd5sum/libcheckisomd5.c b/misc/isomd5sum/libcheckisomd5.c
index 81c65b8a0..e884a3ab9 100644
--- a/misc/isomd5sum/libcheckisomd5.c
+++ b/misc/isomd5sum/libcheckisomd5.c
@@ -57,7 +57,7 @@ static int parsepvd(int isofd, char *mediasum, int *skipsectors, long long *isos
     supportedfnd = 0;
     loc = 0;
     while (loc < 512) {
-	if (!strncmp(buf2 + loc, "ISO MD5SUM = ", 13)) {
+	if (!strncmp((char *)buf2 + loc, "ISO MD5SUM = ", 13)) {
 
 	    /* make sure we dont walk off end */
 	    if ((loc + 32) > 511)
@@ -68,7 +68,7 @@ static int parsepvd(int isofd, char *mediasum, int *skipsectors, long long *isos
 	    md5fnd = 1;
 	    loc += 45;
 	    for (p=buf2+loc; *p != ';' && loc < 512; p++, loc++);
-	} else if (!strncmp(buf2 + loc, "SKIPSECTORS = ", 14)) {
+	} else if (!strncmp((char *)buf2 + loc, "SKIPSECTORS = ", 14)) {
 	    char *errptr;
 
 	    /* make sure we dont walk off end */
@@ -81,7 +81,7 @@ static int parsepvd(int isofd, char *mediasum, int *skipsectors, long long *isos
 
 	    *p = '\0';
 
-	    *skipsectors = strtol(tmpbuf, &errptr, 10);
+	    *skipsectors = strtol((char *)tmpbuf, &errptr, 10);
 	    if (errptr && *errptr) {
  	        return -1;
 	    } else {
@@ -89,10 +89,10 @@ static int parsepvd(int isofd, char *mediasum, int *skipsectors, long long *isos
 	    }
 
 	    for (p=buf2+loc; *p != ';' && loc < 512; p++, loc++);
-	} else if (!strncmp(buf2 + loc, "RHLISOSTATUS=1", 14)) {
+	} else if (!strncmp((char *)buf2 + loc, "RHLISOSTATUS=1", 14)) {
 	    *supported = 1;
 	    supportedfnd = 1;
-	} else if (!strncmp(buf2 + loc, "RHLISOSTATUS=0", 14)) {
+	} else if (!strncmp((char *)buf2 + loc, "RHLISOSTATUS=0", 14)) {
 	    *supported = 0;
 	    supportedfnd = 1;
 	} else {
@@ -263,7 +263,7 @@ int mediaCheckFile(char *file, int quiet) {
 	return -1;
     }
 
-    rc = doMediaCheck(isofd, mediasum, computedsum, &isosize, &supported, quiet);
+    rc = doMediaCheck(isofd, (char *)mediasum, (char *)computedsum, &isosize, &supported, quiet);
 
     close(isofd);
 
diff --git a/misc/isomd5sum/libimplantisomd5.c b/misc/isomd5sum/libimplantisomd5.c
index f727f54f5..2519ab4bd 100644
--- a/misc/isomd5sum/libimplantisomd5.c
+++ b/misc/isomd5sum/libimplantisomd5.c
@@ -104,7 +104,7 @@ int implantISOFile(char *fname, int supported, int forceit, int quiet, char **er
 	return -1;
     }
 
-    pvd_offset = parsepvd(isofd, mediasum, &isosize);
+    pvd_offset = parsepvd(isofd, (char *)mediasum, &isosize);
     if (pvd_offset < 0) {
 	*errstr = "Could not find primary volumne!\n\n";
 	return -1;
@@ -171,8 +171,8 @@ int implantISOFile(char *fname, int supported, int forceit, int quiet, char **er
     loc = writeAppData(new_appdata, "ISO MD5SUM = ", loc);
     loc = writeAppData(new_appdata, md5str, loc);
     loc = writeAppData(new_appdata, ";", loc);
-    snprintf(buf, sizeof(buf), "SKIPSECTORS = %d", SKIPSECTORS);
-    loc = writeAppData(new_appdata, buf, loc);
+    snprintf((char *)buf, sizeof(buf), "SKIPSECTORS = %d", SKIPSECTORS);
+    loc = writeAppData(new_appdata, (char *)buf, loc);
     loc = writeAppData(new_appdata, ";", loc);
 
     if (supported) {