diff --git a/config/cp2k/Linux-x86-64-intelx.arch b/config/cp2k/Linux-x86-64-intelx.arch
index 2f40347..f1193b2 100644
--- a/config/cp2k/Linux-x86-64-intelx.arch
+++ b/config/cp2k/Linux-x86-64-intelx.arch
@@ -619,7 +619,7 @@ ifneq (0,$(IMPI))
   $(info I_MPI_ROOT: $(I_MPI_ROOT))
 endif
 endif
-ifneq (0,$(BLAS)) # incl. undefined
+ifneq (,$(MKL)) # incl. undefined
 ifneq (,$(MKLROOT))
   $(info MKLROOT: $(MKLROOT))
 endif