diff --git a/msgpi/io/iovabs.py b/msgpi/io/iovabs.py
index 05cb663..4f5784c 100644
--- a/msgpi/io/iovabs.py
+++ b/msgpi/io/iovabs.py
@@ -577,7 +577,7 @@ def readVABSOut(fn_in, analysis=0, scrnout=True):
     """
     if analysis == 0 or analysis == 'h' or analysis == '':
         # Read homogenization results
-        return readVABSOutHomo(fn_in+'.k', scrnout)
+        return readVABSOutHomo(fn_in+'.K', scrnout)
     elif analysis == 1 or analysis == 2 or ('d' in analysis) or analysis == 'l':
         pass
     elif analysis == 3 or analysis == 'fi':