diff --git a/src/config/fix_xcode15.sh b/src/config/fix_xcode15.sh
index 44ec351dd9..61dda60087 100755
--- a/src/config/fix_xcode15.sh
+++ b/src/config/fix_xcode15.sh
@@ -6,7 +6,7 @@ if [[ $(uname -s) == "Darwin" ]]; then
 	echo got xcode15
 	export GOT_XCODE15=1
 	export OMPI_FCFLAGS=" -Wl,-ld_classic "
-        export OMPI_CLAGS=" -Wl,-ld_classic -Wno-unused-command-line-argument "
+        export OMPI_CFLAGS=" -Wl,-ld_classic -Wno-unused-command-line-argument "
 #	export MPICH_FC="mpif90 -Wl,-ld_classic "
 #	export MPICH_CC="mpicc -Wl,-ld_classic "
 #	env|egrep MPICH_