diff --git a/configure.ac b/configure.ac
index c39f9eb8..e50b0b63 100644
--- a/configure.ac
+++ b/configure.ac
@@ -151,13 +151,13 @@ AX_CHECK_COMPILE_FLAG([-fwrapv], [CFLAGS="$CFLAGS -fwrapv"])
 AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing], [CFLAGS="$CFLAGS -fno-strict-aliasing"])
 AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CFLAGS="$CFLAGS -fno-strict-overflow"])
 
+LIBTOOL_OLD_FLAGS="$LIBTOOL_EXTRA_FLAGS"
+LIBTOOL_EXTRA_FLAGS="$LIBTOOL_EXTRA_FLAGS -version-info $SODIUM_LIBRARY_VERSION"
 AC_ARG_ENABLE(soname-versions,
   [AC_HELP_STRING([--enable-soname-versions], [enable soname versions (must be disabled for android) (default: enabled)])],
     [
 	AS_IF([test "x$enableval" = "xno"], [
-          LIBTOOL_EXTRA_FLAGS="$LIBTOOL_EXTRA_FLAGS -avoid-version"
-        ], [
-          LIBTOOL_EXTRA_FLAGS="$LIBTOOL_EXTRA_FLAGS -version-info $SODIUM_LIBRARY_VERSION"
+          LIBTOOL_EXTRA_FLAGS="$LIBTOOL_OLD_FLAGS -avoid-version"
         ])
     ]
 )