diff --git a/src/Expander.cpp b/src/Expander.cpp
index 96b2e0a..394360e 100755
--- a/src/Expander.cpp
+++ b/src/Expander.cpp
@@ -212,6 +212,7 @@ std::wstring Expander::expand(const std::wstring &pattern)
 	wstring result = pattern;
 	wstring expanded;
 
+	uint load = 0;
 	for (int i = 0; i < size; i++)
 	{
 		if (isEscSeq(pattern, i))
@@ -219,7 +220,15 @@ std::wstring Expander::expand(const std::wstring &pattern)
 			i++;
 			continue;
 		}
-		else if (pattern[i] == rangeSymbol) //range symbol reached
+		else if (pattern[i] == groupBegin)
+		{
+			load++;
+		}
+		else if (pattern[i] == groupEnd)
+		{
+			load--;
+		}
+		else if (pattern[i] == rangeSymbol && load > 0) //range symbol reached
 		{
 			expanded = L"";
 			if (i - 1 < 0 || i + 1 >= size)
@@ -257,7 +266,7 @@ std::wstring Expander::expand(const std::wstring &pattern)
 					return L""; //range does not seem valid
 				result = preStr + expanded + postStr;
 				size = pattern.length();
-				i += 2;
+				//i += 2;
 			}
 		}
 		//result = "";
diff --git a/test/TestExpander.cpp b/test/TestExpander.cpp
index e6dc5ff..6479039 100644
--- a/test/TestExpander.cpp
+++ b/test/TestExpander.cpp
@@ -640,7 +640,7 @@ TEST_F(TestExpander, testGenerate_VariableBlock_EmbededVarBlock_Cyrilic)
 	EXPECT_EQ(data[8], L"3в");
 }
 
-TEST_F(TestExpander, testGenerate_VariableBlock_First)
+TEST_F(TestExpander, testGenerate_VariableBlock_Beginning)
 {
 
 	wstring pattern = L"[1-3]abc";
@@ -664,6 +664,50 @@ TEST_F(TestExpander, testGenerate_VariableBlock_Middle)
 	EXPECT_EQ(data[2], L"ab3cd");
 }
 
+TEST_F(TestExpander, testGenerate_Static_Range_Beginning)
+{
+
+	wstring pattern = L"a-c[1-3]";
+	underTest.generate(pattern);
+	auto data = underTest.getData();
+	EXPECT_EQ(data.size(), 3);
+	EXPECT_EQ(data[0], L"a-c1");
+	EXPECT_EQ(data[1], L"a-c2");
+	EXPECT_EQ(data[2], L"a-c3");
+}
+
+
+TEST_F(TestExpander, testGenerate_Static_Range_Middle)
+{
+
+	wstring pattern = L"[1-3]a-c[1-3]";
+	underTest.generate(pattern);
+	auto data = underTest.getData();
+	EXPECT_EQ(data.size(), 9);
+	EXPECT_EQ(data[0], L"1a-c1");
+	EXPECT_EQ(data[1], L"2a-c1");
+	EXPECT_EQ(data[2], L"3a-c1");
+	EXPECT_EQ(data[3], L"1a-c2");
+	EXPECT_EQ(data[4], L"2a-c2");
+	EXPECT_EQ(data[5], L"3a-c2");
+	EXPECT_EQ(data[6], L"1a-c3");
+	EXPECT_EQ(data[7], L"2a-c3");
+	EXPECT_EQ(data[8], L"3a-c3");
+}
+
+TEST_F(TestExpander, testGenerate_Static_Range_End)
+{
+
+	wstring pattern = L"[1-3]a-c";
+	underTest.generate(pattern);
+	auto data = underTest.getData();
+	EXPECT_EQ(data.size(), 3);
+	EXPECT_EQ(data[0], L"1a-c");
+	EXPECT_EQ(data[1], L"2a-c");
+	EXPECT_EQ(data[2], L"3a-c");
+}
+
+
 int main(int argc, char **argv)
 {
 	::testing::InitGoogleTest(&argc, argv);