diff --git a/kernel/arm64/ssymm_direct_alpha_beta_arm64_sme1.c b/kernel/arm64/ssymm_direct_alpha_beta_arm64_sme1.c
index 8e3c0c0563..d89eb3dbbc 100644
--- a/kernel/arm64/ssymm_direct_alpha_beta_arm64_sme1.c
+++ b/kernel/arm64/ssymm_direct_alpha_beta_arm64_sme1.c
@@ -189,7 +189,11 @@ static void ssymm_direct_sme1_preprocessLL(uint64_t nbr, uint64_t nbc,
     }
   }
 }
-
+#else
+static void ssymm_direct_sme1_preprocessLU(uint64_t nbr, uint64_t nbc,
+                const float *restrict a, float *restrict a_mod){}
+static void ssymm_direct_sme1_preprocessLL(uint64_t nbr, uint64_t nbc,
+                const float *restrict a, float *restrict a_mod){}
 #endif
 
 //