diff --git a/fortran/Makefile b/fortran/Makefile
index b80f1ea7..0fbd4bb4 100644
--- a/fortran/Makefile
+++ b/fortran/Makefile
@@ -22,7 +22,7 @@ else ifeq ($(FC),nvfortran)
 else ifneq (,$(findstring flang,$(FC)))
     opt_args = -Werror -march=native -flto -J$(BUILD_DIR)
 else ifeq ($(FC),gfortran)
-    opt_args = -Wall -Werror -march=native -flto -J$(BUILD_DIR) -std=f95
+    opt_args = -Wall -Werror -march=native -flto -J$(BUILD_DIR) -std=f95 -ffree-line-length-300
     ifneq ($(findstring $(GCC_MAJOR),8 9 10 11),)
         opt_args += -Wno-error=maybe-uninitialized
     endif