diff --git a/src/cx16-smc.c b/src/cx16-smc.c
index 900bc60..258111a 100644
--- a/src/cx16-smc.c
+++ b/src/cx16-smc.c
@@ -74,7 +74,7 @@ unsigned int smc_detect() {
  */
 unsigned long smc_get_version_text(unsigned char* version_string, unsigned char release, unsigned char major, unsigned char minor) {
 
-    sprintf(version_string, "%u.%u.%u ", release, major, minor);
+    sprintf(version_string, "%u.%u.%u", release, major, minor);
     return MAKELONG(MAKEWORD(minor, major), MAKEWORD(0, release));
 }
 
@@ -301,7 +301,7 @@ unsigned int smc_flash(unsigned int smc_bytes_total) {
         if(smc_attempts_flashed >= 10) {
             sprintf(info_text, "There were too many attempts trying to flash the SMC at location %04x", smc_bytes_flashed);
             display_action_text(info_text);
-            return 0xFFFFFFFF;
+            return (unsigned int)0xFFFF;
         }
     }
 
diff --git a/src/cx16-update.c b/src/cx16-update.c
index 69061df..21895a0 100644
--- a/src/cx16-update.c
+++ b/src/cx16-update.c
@@ -352,12 +352,12 @@ void main() {
                 // Flash the SMC chip.
                 display_action_text("Press both POWER/RESET buttons on the CX16 board!");
                 display_info_smc(STATUS_FLASHING, "Press POWER/RESET!");
-                unsigned long flashed_bytes = smc_flash(smc_file_size);
+                unsigned int flashed_bytes = smc_flash(smc_file_size);
                 if(flashed_bytes) {
                     // SF-1 | and POWER/RESET pressed
                     display_info_smc(STATUS_FLASHED, "");
                 } else {
-                    if(flashed_bytes == (unsigned long)0xFFFFFFFF) {
+                    if(flashed_bytes == (unsigned int)0xFFFF) {
                         // SF-3 | errors during flash
                         display_info_smc(STATUS_ERROR, "SMC has errors!");
                     } else {