diff --git a/spack_repo/packages/icon-nwp/package.py b/spack_repo/packages/icon-nwp/package.py
index 81ca2212391e4816b7479f0924e90fdf08fa2f46..ea4c78bff83a266ace4b013bd17d590e138dd089 100644
--- a/spack_repo/packages/icon-nwp/package.py
+++ b/spack_repo/packages/icon-nwp/package.py
@@ -141,7 +141,7 @@ class IconNwp(Package):
             ARCH_FLAG = f"-mtune={mtune}"
             ICON_FCFLAGS = "-std=f2008 -fallow-argument-mismatch -fmodule-private -fimplicit-none -Wall"
         elif self.spec.satisfies("%intel"):
-            FCFLAGS = "-stand none -implicitnone -warn all -warn conversions -warn unused -assume std_intrinsics -g -w"
+            FCFLAGS = "-stand none -implicitnone -warn all -warn unused -assume std_intrinsics -g -w"
             ARCH_FLAG = f"-xHost"
             ICON_FCFLAGS = "-stand f08 -implicitnone -warn all"
         else: