diff --git a/lib/include/srslte/config.h b/lib/include/srslte/config.h
index 8a988a971..1e9d27aac 100644
--- a/lib/include/srslte/config.h
+++ b/lib/include/srslte/config.h
@@ -59,6 +59,9 @@
 
 // cf_t definition
 typedef _Complex float cf_t;
+
+#ifdef ENABLE_C16
 typedef _Complex short int c16_t;
+#endif /* ENABLE_C16 */
 
 #endif // CONFIG_H
diff --git a/lib/include/srslte/phy/utils/simd.h b/lib/include/srslte/phy/utils/simd.h
index 7ea203290..e22a9ef09 100644
--- a/lib/include/srslte/phy/utils/simd.h
+++ b/lib/include/srslte/phy/utils/simd.h
@@ -150,7 +150,10 @@
 #endif /* LV_HAVE_AVX2 */
 #endif /* LV_HAVE_AVX512 */
 
-
+#ifndef ENABLE_C16
+#undef SRSLTE_SIMD_C16_SIZE
+#define SRSLTE_SIMD_C16_SIZE 0
+#endif /* ENABLE_C16 */
 
 #if SRSLTE_SIMD_F_SIZE
 
diff --git a/lib/include/srslte/phy/utils/vector_simd.h b/lib/include/srslte/phy/utils/vector_simd.h
index 31725edb3..49268ca43 100644
--- a/lib/include/srslte/phy/utils/vector_simd.h
+++ b/lib/include/srslte/phy/utils/vector_simd.h
@@ -106,7 +106,9 @@ SRSLTE_API cf_t srslte_vec_dot_prod_conj_ccc_simd(const cf_t *x, const cf_t *y,
 
 SRSLTE_API cf_t srslte_vec_dot_prod_ccc_simd(const cf_t *x, const cf_t *y, const int len);
 
+#ifdef ENABLE_C16
 SRSLTE_API c16_t srslte_vec_dot_prod_ccc_c16i_simd(const c16_t *x, const c16_t *y, const int len);
+#endif /* ENABLE_C16 */
 
 SRSLTE_API int srslte_vec_dot_prod_sss_simd(const int16_t *x, const int16_t *y, const int len);
 
diff --git a/lib/src/phy/utils/vector_simd.c b/lib/src/phy/utils/vector_simd.c
index 024b3849f..df8a1ea4e 100644
--- a/lib/src/phy/utils/vector_simd.c
+++ b/lib/src/phy/utils/vector_simd.c
@@ -433,6 +433,7 @@ cf_t srslte_vec_dot_prod_ccc_simd(const cf_t *x, const cf_t *y, const int len) {
   return result;
 }
 
+#ifdef ENABLE_C16
 c16_t srslte_vec_dot_prod_ccc_c16i_simd(const c16_t *x, const c16_t *y, const int len) {
   int i = 0;
   c16_t result = 0;
@@ -460,6 +461,7 @@ c16_t srslte_vec_dot_prod_ccc_c16i_simd(const c16_t *x, const c16_t *y, const in
 
   return result;
 }
+#endif /* ENABLE_C16 */
 
 cf_t srslte_vec_dot_prod_conj_ccc_simd(const cf_t *x, const cf_t *y, const int len)
 {
@@ -620,6 +622,7 @@ void srslte_vec_prod_ccc_split_simd(const float *a_re, const float *a_im, const
   }
 }
 
+#ifdef ENABLE_C16
 void srslte_vec_prod_ccc_c16_simd(const int16_t *a_re, const int16_t *a_im, const int16_t *b_re, const int16_t *b_im,
                                   int16_t *r_re, int16_t *r_im, const int len) {
   int i = 0;
@@ -652,6 +655,7 @@ void srslte_vec_prod_ccc_c16_simd(const int16_t *a_re, const int16_t *a_im, cons
     r_im[i] = a_re[i]*b_im[i] + a_im[i]*b_re[i];
   }
 }
+#endif /* ENABLE_C16 */
 
 void srslte_vec_prod_conj_ccc_simd(const cf_t *x, const cf_t *y, cf_t *z, const int len) {
   int i = 0;