diff --git a/lib/icinga/perfdatavalue.cpp b/lib/icinga/perfdatavalue.cpp
index 9c4518f90..d643836ca 100644
--- a/lib/icinga/perfdatavalue.cpp
+++ b/lib/icinga/perfdatavalue.cpp
@@ -20,6 +20,7 @@
 #include "icinga/perfdatavalue.hpp"
 #include "base/convert.hpp"
 #include "base/exception.hpp"
+#include "base/logger.hpp"
 #include <boost/algorithm/string/case_conv.hpp>
 #include <boost/algorithm/string/split.hpp>
 #include <boost/algorithm/string/classification.hpp>
@@ -113,17 +114,10 @@ PerfdataValue::Ptr PerfdataValue::Parse(const String& perfdata)
 		BOOST_THROW_EXCEPTION(std::invalid_argument("Invalid performance data unit: " + unit));
 	}
 
-	if (tokens.size() > 1 && tokens[1] != "U" && tokens[1] != "")
-		warn = Convert::ToDouble(tokens[1]);
-
-	if (tokens.size() > 2 && tokens[2] != "U" && tokens[2] != "")
-		crit = Convert::ToDouble(tokens[2]);
-
-	if (tokens.size() > 3 && tokens[3] != "U" && tokens[3] != "")
-		min = Convert::ToDouble(tokens[3]);
-
-	if (tokens.size() > 4 && tokens[4] != "U" && tokens[4] != "")
-		max = Convert::ToDouble(tokens[4]);
+	warn = ParseWarnCritMinMaxToken(tokens, 1, "warning");
+	crit = ParseWarnCritMinMaxToken(tokens, 2, "critical");
+	min = ParseWarnCritMinMaxToken(tokens, 3, "minimum");
+	max = ParseWarnCritMinMaxToken(tokens, 4, "maximum");
 
 	value = value * base;
 
@@ -184,3 +178,15 @@ String PerfdataValue::Format(void) const
 
 	return result.str();
 }
+
+Value PerfdataValue::ParseWarnCritMinMaxToken(const std::vector<String>& tokens, std::vector<String>::size_type index, const String& description)
+{
+	if (tokens.size() > index && tokens[index] != "U" && tokens[index] != "" && tokens[index].FindFirstNotOf("+-0123456789.e") == String::NPos)
+		return Convert::ToDouble(tokens[index]);
+	else {
+		if (tokens.size() > index && tokens[index] != "")
+			Log(LogDebug, "PerfdataValue")
+			    << "Ignoring unsupported perfdata " << description << " range, value: '" << tokens[index] << "'.";
+		return Empty;
+	}
+}
diff --git a/lib/icinga/perfdatavalue.hpp b/lib/icinga/perfdatavalue.hpp
index 1be5bd174..3b6a391f1 100644
--- a/lib/icinga/perfdatavalue.hpp
+++ b/lib/icinga/perfdatavalue.hpp
@@ -39,6 +39,10 @@ public:
 
 	static PerfdataValue::Ptr Parse(const String& perfdata);
 	String Format(void) const;
+
+private:
+	static Value ParseWarnCritMinMaxToken(const std::vector<String>& tokens,
+	    std::vector<String>::size_type index, const String& description);
 };
 
 }
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 6bb966257..dc4653f08 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -103,6 +103,7 @@ add_boost_test(base
 	icinga_perfdata/multiple
 	icinga_perfdata/uom
 	icinga_perfdata/warncritminmax
+	icinga_perfdata/ignore_invalid_warn_crit_min_max
 	icinga_perfdata/invalid
 	icinga_perfdata/multi
 )
diff --git a/test/icinga-perfdata.cpp b/test/icinga-perfdata.cpp
index 134c7d585..7b06990b8 100644
--- a/test/icinga-perfdata.cpp
+++ b/test/icinga-perfdata.cpp
@@ -114,10 +114,23 @@ BOOST_AUTO_TEST_CASE(warncritminmax)
 	BOOST_CHECK(pv->Format() == "test=123456B;1000;2000;3000;4000");
 }
 
+BOOST_AUTO_TEST_CASE(ignore_invalid_warn_crit_min_max)
+{
+	PerfdataValue::Ptr pv = PerfdataValue::Parse("test=123456;1000:2000;0:3000;3000;4000");
+	BOOST_CHECK(pv);
+	BOOST_CHECK(pv->GetValue() == 123456);
+	BOOST_CHECK(pv->GetWarn() == Empty);
+	BOOST_CHECK(pv->GetCrit() == Empty);
+	BOOST_CHECK(pv->GetMin() == 3000);
+	BOOST_CHECK(pv->GetMax() == 4000);
+
+	BOOST_CHECK(pv->Format() == "test=123456");
+}
+
 BOOST_AUTO_TEST_CASE(invalid)
 {
+	BOOST_CHECK_THROW(PerfdataValue::Parse("123456"), boost::exception);
 	BOOST_CHECK_THROW(PerfdataValue::Parse("test=1,23456"), boost::exception);
-	BOOST_CHECK_THROW(PerfdataValue::Parse("test=123456;10%;20%"), boost::exception);
 }
 
 BOOST_AUTO_TEST_CASE(multi)