diff --git a/dep/yac/sharedlib_linux.mk b/dep/yac/sharedlib_linux.mk
index 1143235f..6e3f7857 100644
--- a/dep/yac/sharedlib_linux.mk
+++ b/dep/yac/sharedlib_linux.mk
@@ -12,9 +12,9 @@ TARGET=$(TARGET_BASENAME).so
 endif
 
 CPPFLAGS += -I"$(VSVR_BASE_DIR)/dep/yac" $(EXTRAFLAGS)
-#CPPFLAGS+= -fPIC
+CPPFLAGS+= -fPIC
 CFLAGS += -I"$(VSVR_BASE_DIR)/dep/yac" $(EXTRAFLAGS)
-#CFLAGS+= -fPIC
+CFLAGS+= -fPIC
 EXTRALIBS += -L$(CROSS_ROOT)/usr/lib -lm -lpthread
 
 ###########include sharedlib_common_gcc.mk
diff --git a/dep/yac/staticlib_linux.mk b/dep/yac/staticlib_linux.mk
index 01024350..501cab5a 100644
--- a/dep/yac/staticlib_linux.mk
+++ b/dep/yac/staticlib_linux.mk
@@ -25,6 +25,9 @@ ifeq ("$(TARGET)","")
 TARGET=$(TARGET_BASENAME).a
 endif
 
+CFLAGS+= -fPIC
+CPPFLAGS+= -fPIC
+
 CPPFLAGS += -I"$(VSVR_BASE_DIR)/dep/yac/" -DLINUX $(EXTRAFLAGS)
 # -DYAC_FORCE_NO_TLS
 EXTRALIBS +=