diff --git a/kstars/ekos/align/align.cpp b/kstars/ekos/align/align.cpp
--- a/kstars/ekos/align/align.cpp
+++ b/kstars/ekos/align/align.cpp
@@ -894,7 +894,7 @@
 
         initRA = spWest.ra().Degrees();
         if (raPoints > 1)
-            raIncrement = abs(angleSep.Degrees() / (raPoints - 1));
+            raIncrement = fabs(angleSep.Degrees() / (raPoints - 1));
         else
             raIncrement = 0;
     }