diff --git a/src/inja.hpp b/src/inja.hpp
index 1e307be..3c8302f 100644
--- a/src/inja.hpp
+++ b/src/inja.hpp
@@ -501,15 +501,15 @@ public:
 		{Parsed::Function::GreaterEqual, Regex{"(.+) >= (.+)"}},
 		{Parsed::Function::LessEqual, Regex{"(.+) <= (.+)"}},
 		{Parsed::Function::Different, Regex{"(.+) != (.+)"}},
-		{Parsed::Function::Upper, Regex{"upper\\(\\s*(.*?)\\s*\\)"}},
-		{Parsed::Function::Lower, Regex{"lower\\(\\s*(.*?)\\s*\\)"}},
-		{Parsed::Function::Range, Regex{"range\\(\\s*(.*?)\\s*\\)"}},
-		{Parsed::Function::Length, Regex{"length\\(\\s*(.*?)\\s*\\)"}},
-		{Parsed::Function::Round, Regex{"round\\(\\s*(.*?)\\s*,\\s*(.*?)\\s*\\)"}},
-		{Parsed::Function::DivisibleBy, Regex{"divisibleBy\\(\\s*(.*?)\\s*,\\s*(.*?)\\s*\\)"}},
-		{Parsed::Function::Odd, Regex{"odd\\(\\s*(.*?)\\s*\\)"}},
-		{Parsed::Function::Even, Regex{"even\\(\\s*(.*?)\\s*\\)"}},
-		{Parsed::Function::ReadJson, Regex{"\\s*([^()]*)\\s*"}}
+		{Parsed::Function::Upper, Regex{"upper\\(\\s*(.*)\\s*\\)"}},
+		{Parsed::Function::Lower, Regex{"lower\\(\\s*(.*)\\s*\\)"}},
+		{Parsed::Function::Range, Regex{"range\\(\\s*(.*)\\s*\\)"}},
+		{Parsed::Function::Length, Regex{"length\\(\\s*(.*)\\s*\\)"}},
+		{Parsed::Function::Round, Regex{"round\\(\\s*(.*)\\s*,\\s*(.*)\\s*\\)"}},
+		{Parsed::Function::DivisibleBy, Regex{"divisibleBy\\(\\s*(.*)\\s*,\\s*(.*)\\s*\\)"}},
+		{Parsed::Function::Odd, Regex{"odd\\(\\s*(.*)\\s*\\)"}},
+		{Parsed::Function::Even, Regex{"even\\(\\s*(.*)\\s*\\)"}},
+		{Parsed::Function::ReadJson, Regex{"\\s*([^()]*?)\\s*"}}
 	};
 
 	Parser() { }
diff --git a/test/src/unit-string-helper.cpp b/test/src/unit-string-helper.cpp
index e3e1d03..58a7f0c 100644
--- a/test/src/unit-string-helper.cpp
+++ b/test/src/unit-string-helper.cpp
@@ -48,6 +48,13 @@ TEST_CASE("search-with-multiple-possible-regexes") {
 		CHECK( match.str() == "ipsum" );
 		CHECK( match.str(1) == "s" );
 	}
+
+	SECTION("basic 3") {
+		std::vector<inja::Regex> regex_patterns = { inja::Regex("upper\\((.*)\\)"), inja::Regex("lower\\((.*)\\)"), inja::Regex("[^()]*?") };
+		inja::Match match = inja::search("upper(lower(name))", regex_patterns, 0);
+		CHECK( match.regex_number() == 0 );
+		CHECK( match.str(1) == "lower(name)" );
+	}
 }
 
 TEST_CASE("search-on-level") {