diff --git a/driver/level2/trsv_L.c b/driver/level2/trsv_L.c
index 95ec57213..32fa99c8a 100644
--- a/driver/level2/trsv_L.c
+++ b/driver/level2/trsv_L.c
@@ -45,7 +45,7 @@ const static FLOAT dm1 = -1.;
 #undef GEMV_UNROLL
 #define GEMV_UNROLL DTB_ENTRIES
 
-int CNAME(BLASLONG m, FLOAT *a, BLASLONG lda, FLOAT *b, BLASLONG incb, void *buffer){
+int __attribute__((visibility("hidden"))) CNAME(BLASLONG m, FLOAT *a, BLASLONG lda, FLOAT *b, BLASLONG incb, void *buffer){
 
   BLASLONG i, is, min_i;
   FLOAT *gemvbuffer = (FLOAT *)buffer;
diff --git a/driver/level2/trsv_U.c b/driver/level2/trsv_U.c
index 823ca2e43..9230c507a 100644
--- a/driver/level2/trsv_U.c
+++ b/driver/level2/trsv_U.c
@@ -42,7 +42,7 @@
 
 const static FLOAT dm1 = -1.;
 
-int CNAME(BLASLONG m, FLOAT *a, BLASLONG lda, FLOAT *b, BLASLONG incb, void *buffer){
+int __attribute__((visibility("hidden"))) CNAME(BLASLONG m, FLOAT *a, BLASLONG lda, FLOAT *b, BLASLONG incb, void *buffer){
 
   BLASLONG i, is, min_i;
   FLOAT *gemvbuffer = (FLOAT *)buffer;
diff --git a/driver/level2/ztrsv_L.c b/driver/level2/ztrsv_L.c
index dd3b2786e..539c08455 100644
--- a/driver/level2/ztrsv_L.c
+++ b/driver/level2/ztrsv_L.c
@@ -42,7 +42,7 @@
 
 const static FLOAT dm1 = -1.;
 
-int CNAME(BLASLONG m, FLOAT *a, BLASLONG lda, FLOAT *b, BLASLONG incb, void *buffer){
+int __attribute__((visibility("hidden"))) CNAME(BLASLONG m, FLOAT *a, BLASLONG lda, FLOAT *b, BLASLONG incb, void *buffer){
 
   BLASLONG i, is, min_i;
 #if (TRANSA == 2) || (TRANSA == 4)
diff --git a/driver/level2/ztrsv_U.c b/driver/level2/ztrsv_U.c
index 8803182a8..6d6c48acb 100644
--- a/driver/level2/ztrsv_U.c
+++ b/driver/level2/ztrsv_U.c
@@ -42,7 +42,7 @@
 
 const static FLOAT dm1 = -1.;
 
-int CNAME(BLASLONG m, FLOAT *a, BLASLONG lda, FLOAT *b, BLASLONG incb, void *buffer){
+int __attribute__((visibility("hidden"))) CNAME(BLASLONG m, FLOAT *a, BLASLONG lda, FLOAT *b, BLASLONG incb, void *buffer){
 
   BLASLONG i, is, min_i;
 #if (TRANSA == 2) || (TRANSA == 4)