diff --git a/cli/main.c b/cli/main.c
index 45b221e..0a814d5 100644
--- a/cli/main.c
+++ b/cli/main.c
@@ -1461,6 +1461,9 @@ cleanup3:
 
 	if ((want_flags & PKG_LIBS))
 	{
+		if (want_flags & PKG_CFLAGS)
+			printf(" ");
+
 		if (!(want_flags & PKG_STATIC))
 			pkgconf_client_set_flags(&pkg_client, pkg_client.flags & ~PKGCONF_PKG_PKGF_SEARCH_PRIVATE);