diff --git a/package/nmap/nmap.mk b/package/nmap/nmap.mk
index d450f5e99b..1a0e977d39 100644
--- a/package/nmap/nmap.mk
+++ b/package/nmap/nmap.mk
@@ -30,7 +30,7 @@ NMAP_POST_PATCH_HOOKS += NMAP_WRAPPER_EXEC
 ifeq ($(BR2_PACKAGE_OPENSSL),y)
 NMAP_CONF_OPTS += --with-openssl="$(STAGING_DIR)/usr"
 NMAP_DEPENDENCIES += host-pkgconf openssl
-NMAP_LIBS_FOR_STATIC_LINK += $(shell $(PKG_CONFIG_HOST_BINARY) --libs --static openssl)
+NMAP_LIBS_FOR_STATIC_LINK += `$(PKG_CONFIG_HOST_BINARY) --libs openssl`
 else
 NMAP_CONF_OPTS += --without-openssl
 endif