diff --git a/indi-astarbox/mcp3421.cpp b/indi-astarbox/mcp3421.cpp
index 6ef456da7..96f39900c 100644
--- a/indi-astarbox/mcp3421.cpp
+++ b/indi-astarbox/mcp3421.cpp
@@ -55,6 +55,9 @@ int mcp3421::openMCP3421()
     }
     else
         return nErr;
+
+    return nErr;
+
 }
 
 int mcp3421::closeMCP3421()
diff --git a/indi-astarbox/mcp3421.h b/indi-astarbox/mcp3421.h
index f46f7b711..97276e7d1 100644
--- a/indi-astarbox/mcp3421.h
+++ b/indi-astarbox/mcp3421.h
@@ -2,6 +2,7 @@
 #include <iostream>
 #include <fcntl.h>
 #include <unistd.h>
+#include <cstdint>
 #include <sys/ioctl.h>
 
 #define ADC_ADDR0 0x68