diff --git a/src/util/ecl-config b/src/util/ecl-config
index 0d4f009e1..30f62b34d 100644
--- a/src/util/ecl-config
+++ b/src/util/ecl-config
@@ -32,7 +32,7 @@ for i in $*; do
 done
 
 if test "$echo_cflags" = "yes"; then
-  echo "@ECL_CFLAGS@ @GMP_CFLAGS@ @DEBUG_CFLAGS@ -I@includedir\@"
+  echo "@ECL_CFLAGS@ @GMP_CPPFLAGS@ @DEBUG_CFLAGS@ -I@includedir\@"
 fi
 
 if test "$echo_ldflags" = "yes"; then