diff --git a/userspace/libsinsp/sinsp.h b/userspace/libsinsp/sinsp.h
index 087a0b6324..0b09831609 100644
--- a/userspace/libsinsp/sinsp.h
+++ b/userspace/libsinsp/sinsp.h
@@ -989,6 +989,9 @@ class SINSP_PUBLIC sinsp : public capture_stats_source
 	const std::string& get_host_root() const { return m_host_root; }
 	void set_host_root(const std::string& s) { m_host_root = s; }
 
+	const int32_t& get_quantization_interval() const { return m_quantization_interval; }
+	void set_quantization_interval(const int32_t& v) { m_quantization_interval = v; }
+
 	void set_observer(sinsp_observer* observer) { m_observer = observer; }
 	sinsp_observer* get_observer() const { return m_observer; }
 
@@ -1113,6 +1116,8 @@ VISIBILITY_PRIVATE
 
 	std::string m_host_root;
 
+	int32_t m_quantization_interval = -1;
+
 public:
 	sinsp_thread_manager* m_thread_manager;
 
diff --git a/userspace/libsinsp/sinsp_filtercheck_event.cpp b/userspace/libsinsp/sinsp_filtercheck_event.cpp
index b2e8235bee..4013e4b5ac 100644
--- a/userspace/libsinsp/sinsp_filtercheck_event.cpp
+++ b/userspace/libsinsp/sinsp_filtercheck_event.cpp
@@ -30,7 +30,6 @@ limitations under the License.
 using namespace std;
 
 extern sinsp_evttables g_infotables;
-static int32_t g_screen_w = -1;
 
 #define RETURN_EXTRACT_VAR(x) do {  \
         *len = sizeof((x));         \
@@ -784,7 +783,7 @@ uint8_t* sinsp_filter_check_event::extract(sinsp_evt *evt, OUT uint32_t* len, bo
 						llatency = 11;
 					}
 
-					m_u64val = (uint64_t)(llatency * g_screen_w / 11) + 1;
+					m_u64val = (uint64_t)(llatency * m_inspector->get_quantization_interval() / 11) + 1;
 
 					RETURN_EXTRACT_VAR(m_u64val);
 				}
diff --git a/userspace/libsinsp/sinsp_filtercheck_tracer.cpp b/userspace/libsinsp/sinsp_filtercheck_tracer.cpp
index eae0a5b7fa..3870e61ff2 100644
--- a/userspace/libsinsp/sinsp_filtercheck_tracer.cpp
+++ b/userspace/libsinsp/sinsp_filtercheck_tracer.cpp
@@ -27,8 +27,6 @@ limitations under the License.
 
 using namespace std;
 
-static int32_t g_screen_w = -1;
-
 #define RETURN_EXTRACT_VAR(x) do {  \
         *len = sizeof((x));         \
         return (uint8_t*) &(x);     \
@@ -590,7 +588,7 @@ uint8_t* sinsp_filter_check_tracer::extract(sinsp_evt *evt, OUT uint32_t* len, b
 						lduration = 11;
 					}
 
-					m_s64val = (uint64_t)(lduration * g_screen_w / 11) + 1;
+					m_s64val = (uint64_t)(lduration * m_inspector->get_quantization_interval() / 11) + 1;
 
 					RETURN_EXTRACT_VAR(m_s64val);
 				}