diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 75af93dc52ad..8beff9944f44 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -587,7 +587,7 @@ endif
 ifdef NO_GTK2
 	BASIC_CFLAGS += -DNO_GTK2_SUPPORT
 else
-	FLAGS_GTK2=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) $(shell pkg-config --libs --cflags gtk+-2.0)
+	FLAGS_GTK2=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null)
 	ifneq ($(call try-cc,$(SOURCE_GTK2),$(FLAGS_GTK2)),y)
 		msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
 		BASIC_CFLAGS += -DNO_GTK2_SUPPORT
@@ -595,8 +595,8 @@ else
 		ifeq ($(call try-cc,$(SOURCE_GTK2_INFOBAR),$(FLAGS_GTK2)),y)
 			BASIC_CFLAGS += -DHAVE_GTK_INFO_BAR
 		endif
-		BASIC_CFLAGS += $(shell pkg-config --cflags gtk+-2.0)
-		EXTLIBS += $(shell pkg-config --libs gtk+-2.0)
+		BASIC_CFLAGS += $(shell pkg-config --cflags gtk+-2.0 2>/dev/null)
+		EXTLIBS += $(shell pkg-config --libs gtk+-2.0 2>/dev/null)
 		LIB_OBJS += $(OUTPUT)ui/gtk/browser.o
 		LIB_OBJS += $(OUTPUT)ui/gtk/setup.o
 		LIB_OBJS += $(OUTPUT)ui/gtk/util.o