diff --git a/make/defs.mk b/make/defs.mk
index 36e10ec4..9bb96a2e 100644
--- a/make/defs.mk
+++ b/make/defs.mk
@@ -4,7 +4,6 @@
 
 ifndef YTOOLS_DEF_MK_INCLUDED
 YTOOLS_DEF_MK_INCLUDED = true
-
 include $(MODDIR)/make/platform.mk
 
 # ----- pre-local.mk
@@ -1290,9 +1289,9 @@ ifeq ($(USE_GLIB),true)
       LIBFLAGS            += $(shell PKG_CONFIG_PATH=/opt/gnome/lib/pkgconfig pkg-config --libs glib-2.0)
     endif
     ifeq ($(ARCH),x86_64)
-      PROJECT_CFLAGS      += $(shell export PKG_CONFIG_PATH=/opt/gnome/lib64/pkgconfig; pkg-config --cflags glib-2.0)
-      PROJECT_CPPFLAGS    += $(shell export PKG_CONFIG_PATH=/opt/gnome/lib64/pkgconfig; pkg-config --cflags glib-2.0)
-      LIBFLAGS            += $(shell export PKG_CONFIG_PATH=/opt/gnome/lib64/pkgconfig; pkg-config --libs glib-2.0)
+      PROJECT_CFLAGS      += $(shell PKG_CONFIG_PATH=/opt/gnome/lib64/pkgconfig pkg-config --cflags glib-2.0)
+      PROJECT_CPPFLAGS    += $(shell PKG_CONFIG_PATH=/opt/gnome/lib64/pkgconfig pkg-config --cflags glib-2.0)
+      LIBFLAGS            += $(shell PKG_CONFIG_PATH=/opt/gnome/lib64/pkgconfig pkg-config --libs glib-2.0)
     endif
     LIBFLAGS              += -ldl -lpthread
   else