diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9ef7defe51..b21da32658 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -252,8 +252,6 @@ else()
   try_append_c_flags(-Wundef)
 endif()
 
-set(CMAKE_C_VISIBILITY_PRESET hidden)
-
 # Ask CTest to create a "check" target (e.g., make check) as alias for the "test" target.
 # CTEST_TEST_TARGET_ALIAS is not documented but supposed to be user-facing.
 # See: https://gitlab.kitware.com/cmake/cmake/-/commit/816c9d1aa1f2b42d40c81a991b68c96eb12b6d2
diff --git a/configure.ac b/configure.ac
index 158ed5d769..e1c0ce0aa5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -111,7 +111,6 @@ AC_DEFUN([SECP_TRY_APPEND_DEFAULT_CFLAGS], [
       SECP_TRY_APPEND_CFLAGS([-Wcast-align=strict], $1) # GCC >= 8.0
       SECP_TRY_APPEND_CFLAGS([-Wconditional-uninitialized], $1) # Clang >= 3.0 only
       SECP_TRY_APPEND_CFLAGS([-Wreserved-identifier], $1) # Clang >= 13.0 only
-      SECP_TRY_APPEND_CFLAGS([-fvisibility=hidden], $1) # GCC >= 4.0
 
       CFLAGS="$SECP_TRY_APPEND_DEFAULT_CFLAGS_saved_CFLAGS"
     fi