diff --git a/flang/tools/f18/flang.sh.in b/flang/tools/f18/flang.sh.in
--- a/flang/tools/f18/flang.sh.in
+++ b/flang/tools/f18/flang.sh.in
@@ -26,4 +26,4 @@
 
 wd=`abspath $(dirname "$0")/..`
 
-${wd}/bin/f18 -module-suffix .f18.mod -intrinsic-module-directory @FLANG_INTRINSIC_MODULES_DIR@ $*
+${wd}/bin/f18 -module-suffix .f18.mod -intrinsic-module-directory ${wd}/include/flang $*