diff --git a/src/ExternLib/GetClbInfo/GetClbInfo.hh b/src/ExternLib/GetClbInfo/GetClbInfo.hh
index fbabde6..6f3c35a 100644
--- a/src/ExternLib/GetClbInfo/GetClbInfo.hh
+++ b/src/ExternLib/GetClbInfo/GetClbInfo.hh
@@ -109,8 +109,8 @@ public:
 	ElementType value = _paramInput.getDataList()[index];
 	std::vector<double> calib;
 	calib.resize(_maxSize, std::nan(""));
-	int clb_index = (int)floor(value);
-	if (!isNAN(value) && (clb_index >= 0) && (clb_index < _calibrationInfoList.size())) {
+	unsigned int clb_index = (unsigned int)floor(value);
+	if (!isNAN(value) && (_calibrationInfoList.find(clb_index) != _calibrationInfoList.end())) {
 		Parameter::InfoValues* info = _calibrationInfoList[clb_index];
 
 		if (info != NULL) {
--
libgit2 0.21.2