diff --git a/curl-config.in b/curl-config.in
index 3e3cb2f2e..fcbb5ff6f 100644
--- a/curl-config.in
+++ b/curl-config.in
@@ -107,8 +107,11 @@ while test $# -gt 0; do
 	;;
 
     --cflags)
-       	#echo -I@includedir@
-        echo ""
+       	if test "X@includedir@" = "X/usr/include"; then
+          echo ""
+        else
+          echo "-I@includedir@"
+        fi
        	;;
 
     --libs)