diff --git a/pgxn/neon/Makefile b/pgxn/neon/Makefile
index f3053c2c76..9d9c2f34b6 100644
--- a/pgxn/neon/Makefile
+++ b/pgxn/neon/Makefile
@@ -31,7 +31,7 @@ SHLIB_LINK_INTERNAL = $(libpq)
 SHLIB_LINK = -lcurl
 
 UNAME_S := $(shell uname -s)
-ifeq ($(shell uname), Darwin)
+ifeq ($(UNAME_S), Darwin)
     SHLIB_LINK += -framework Security -framework CoreFoundation -framework SystemConfiguration
 endif