diff --git a/src/nikonmn.cpp b/src/nikonmn.cpp
index a794d62a..e1cec847 100644
--- a/src/nikonmn.cpp
+++ b/src/nikonmn.cpp
@@ -2599,8 +2599,8 @@ fmountlens[] = {
         std::ostringstream oss;
         oss.copyfmt(os);
         char sign = value.toLong() < 0 ? '-' : '+';
-        long h = long(abs(value.toFloat())/60.0);
-        long min = long(abs(value.toFloat()) - h*60);
+        long h    = long(std::abs( (int) (value.toFloat()/60.0)  ));
+        long min  = long(std::abs( (int) (value.toFloat()-h*60)  ));
         os << std::fixed << "UTC " << sign << std::setw(2) << std::setfill('0') << h << ":" 
            << std::setw(2) << std::setfill('0') << min;
         os.copyfmt(oss);