diff --git a/eBPF_Supermarket/CPU_Subsystem/eBPF_proc_image/Makefile b/eBPF_Supermarket/CPU_Subsystem/eBPF_proc_image/Makefile
index 2c7d12a2a..d36f59600 100644
--- a/eBPF_Supermarket/CPU_Subsystem/eBPF_proc_image/Makefile
+++ b/eBPF_Supermarket/CPU_Subsystem/eBPF_proc_image/Makefile
@@ -142,7 +142,7 @@ $(CONTROLLER): %: $(OUTPUT)/%.o $(COMMON_OBJ) $(LIBBPF_OBJ) | $(OUTPUT)
 
 $(WORKTOOL): %: $(OUTPUT)/%.o $(COMMON_OBJ) $(LIBBPF_OBJ) | $(OUTPUT)
 	$(call msg,BINARY,$@)
-	$(Q)$(CC) $^ $(ALL_LDFLAGS) -lstdc++ -lelf -lz -o $@
+	$(Q)$(CC) $^ $(ALL_LDFLAGS) -lstdc++ -lelf -lz -lpthread -o $@
 	@mkdir -p $(OUTPUT)/data
 	@[ -f $(OUTPUT)/data/offcpu_stack.txt ] || touch $(OUTPUT)/data/offcpu_stack.txt
 
@@ -162,4 +162,4 @@ SUCCESS_MESSAGE:
 .DELETE_ON_ERROR:
 
 # keep intermediate (.skel.h, .bpf.o, etc) targets
-.SECONDARY:
\ No newline at end of file
+.SECONDARY: