diff --git a/runtime/src/CMakeLists.txt b/runtime/src/CMakeLists.txt
index efa9e1f..28d0ace 100644
--- a/runtime/src/CMakeLists.txt
+++ b/runtime/src/CMakeLists.txt
@@ -239,6 +239,11 @@
   configure_file(${LIBOMP_INC_DIR}/omp_lib.h.var omp_lib.h @ONLY)
   configure_file(${LIBOMP_INC_DIR}/omp_lib.f.var omp_lib.f @ONLY)
   configure_file(${LIBOMP_INC_DIR}/omp_lib.f90.var omp_lib.f90 @ONLY)
+  # Workaround for gfortran to build modules with the
+  # omp_sched_monotonic integer parameter
+  if (CMAKE_Fortran_COMPILER_ID STREQUAL "GNU")
+    set(ADDITIONAL_Fortran_FLAGS "-fno-range-check")
+  endif()
   add_custom_target(libomp-mod ALL DEPENDS omp_lib.mod omp_lib_kinds.mod)
   libomp_get_fflags(LIBOMP_CONFIGURED_FFLAGS)
   if(CMAKE_Fortran_COMPILER_SUPPORTS_F90)
@@ -248,7 +253,8 @@
   endif()
   add_custom_command(
     OUTPUT omp_lib.mod omp_lib_kinds.mod
-    COMMAND ${CMAKE_Fortran_COMPILER} -c ${LIBOMP_CONFIGURED_FFLAGS} ${LIBOMP_FORTRAN_SOURCE_FILE}
+    COMMAND ${CMAKE_Fortran_COMPILER} -c ${ADDITIONAL_Fortran_FLAGS}
+            ${LIBOMP_CONFIGURED_FFLAGS} ${LIBOMP_FORTRAN_SOURCE_FILE}
     DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${LIBOMP_FORTRAN_SOURCE_FILE}
       ${CMAKE_CURRENT_BINARY_DIR}/omp_lib.h
   )
diff --git a/runtime/src/include/50/omp_lib.f90.var b/runtime/src/include/50/omp_lib.f90.var
index cef6f33..a971577 100644
--- a/runtime/src/include/50/omp_lib.f90.var
+++ b/runtime/src/include/50/omp_lib.f90.var
@@ -59,7 +59,7 @@
         integer(kind=omp_sched_kind), parameter :: omp_sched_dynamic = 2
         integer(kind=omp_sched_kind), parameter :: omp_sched_guided  = 3
         integer(kind=omp_sched_kind), parameter :: omp_sched_auto    = 4
-        integer(kind=omp_sched_kind), parameter :: omp_sched_monotonic = Z'80000000'
+        integer(kind=omp_sched_kind), parameter :: omp_sched_monotonic = int(Z'80000000', kind=omp_sched_kind)
 
         integer (kind=omp_proc_bind_kind), parameter :: omp_proc_bind_false = 0
         integer (kind=omp_proc_bind_kind), parameter :: omp_proc_bind_true = 1