diff --git a/srecord/arglex.cc b/srecord/arglex.cc
index 9a2ad1f9..ca9ff92a 100644
--- a/srecord/arglex.cc
+++ b/srecord/arglex.cc
@@ -144,10 +144,10 @@ srecord::arglex::compare(const char *formal, const char *actual)
 {
     for (;;)
     {
-        uint8_t ac = *actual++;
+        std::uint8_t ac = *actual++;
         if (isupper(ac))
             ac = tolower(ac);
-        uint8_t fc = *formal++;
+        std::uint8_t fc = *formal++;
         switch (fc)
         {
         case 0:
diff --git a/srecord/arglex/abbreviate.cc b/srecord/arglex/abbreviate.cc
index 11441e90..d6b7d2e7 100644
--- a/srecord/arglex/abbreviate.cc
+++ b/srecord/arglex/abbreviate.cc
@@ -25,7 +25,7 @@ srecord::arglex::abbreviate(const char *s)
     std::string result;
     for (;;)
     {
-        uint8_t c = *s++;
+        std::uint8_t c = *s++;
         switch (c)
         {
         case '\0':