diff --git a/configure.ac b/configure.ac
index c92ab9e22f..3d8c0d1d35 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2541,11 +2541,10 @@ if test X"$want_h2" != Xno; then
     LDFLAGS="$LDFLAGS $LD_H2"
     CPPFLAGS="$CPPFLAGS $CPP_H2"
     LIBS="$LIB_H2 $LIBS"
-    LIB_H2_NAME=`echo $LIB_H2 | $SED -ne 's/.*-l *\(nghttp2[^ ]*\).*/\1/p'`
 
     # use nghttp2_session_set_local_window_size to require nghttp2
     # >= 1.12.0
-    AC_CHECK_LIB($LIB_H2_NAME, nghttp2_session_set_local_window_size,
+    AC_CHECK_LIB(nghttp2, nghttp2_session_set_local_window_size,
       [
        AC_CHECK_HEADERS(nghttp2/nghttp2.h,
           curl_h2_msg="enabled (nghttp2)"