diff --git a/src/engines/bash-engine.cc b/src/engines/bash-engine.cc
index 2f76e049..68787930 100644
--- a/src/engines/bash-engine.cc
+++ b/src/engines/bash-engine.cc
@@ -619,7 +619,7 @@ class BashEngine : public ScriptEngineBase
 				continue;
 
 			// While, if, switch endings
-			if (s == "esac" || s == "fi" || s == "do" || s == "done" || s == "else" || s == "then" || s == "}" || s == "{")
+			if (s == "esac" || s == "fi" || s == "do" || s == "done" || s == "else" || s == "then" || s == "}" || s == "{" || s == ")" || s == "(")
 				continue;
 
 			// Functions
@@ -684,6 +684,10 @@ class BashEngine : public ScriptEngineBase
 			if ((s[0] == '{' || s[0] == '}') && s.size() == 1)
 				continue;
 
+			// Empty parentheses
+			if ((s[0] == '(' || s[0] == ')') && s.size() == 1)
+				continue;
+
 			// While, if, switch endings
 			if (s == "esac" || s == "fi" || s == "do" || s == "done" || s == "else" || s == "then")
 				continue;
@@ -756,8 +760,17 @@ class BashEngine : public ScriptEngineBase
 				if (!arithmeticActive && s.find("let ") != 0 && s.find("$((") == std::string::npos
 						&& s.find("))") == std::string::npos && heredocStart != std::string::npos)
 				{
-					// Skip << and remove spaces before and after "EOF"
-					heredocMarker = trim_string(s.substr(heredocStart + 2, s.size()));
+					// Skip <<
+					heredocMarker = s.substr(heredocStart + 2, s.size());
+
+					if (heredocMarker[0] == '-')
+					{
+						// '-' marks tab-suppression in heredoc
+						heredocMarker = heredocMarker.substr(1);
+					}
+
+					// Remove spaces before and after "EOF"
+					heredocMarker = trim_string(heredocMarker);
 
 					// Make sure the heredoc marker is a word
 					for (unsigned int i = 0; i < heredocMarker.size(); i++)
@@ -769,12 +782,6 @@ class BashEngine : public ScriptEngineBase
 						}
 					}
 
-					if (heredocMarker[0] == '-')
-					{
-						// '-' marks tab-suppression in heredoc
-						heredocMarker = heredocMarker.substr(1);
-					}
-
 					if (heredocMarker.length() > 2 && (heredocMarker[0] == '"' || heredocMarker[0] == '\'')
 							&& heredocMarker[0] == heredocMarker[heredocMarker.length() - 1])
 					{
diff --git a/tests/bash/shell-main b/tests/bash/shell-main
index 1d5d0b1e..13f20cf2 100755
--- a/tests/bash/shell-main
+++ b/tests/bash/shell-main
@@ -178,3 +178,25 @@ booknames=`sqlplus -S -R 3 "$LOGON_STR" <<-EOF
        exit;
 EOF`
 echo $booknames
+
+# Issue 457
+
+cat << EOF
+foo
+bar
+EOF
+
+cat << "EOF"
+foo
+bar
+EOF
+
+cat <<- EOF
+foo
+bar
+EOF
+
+cat <<- "EOF"
+foo
+bar
+EOF
diff --git a/tests/bash/subshell.sh b/tests/bash/subshell.sh
index 05bf1b55..40d815f8 100755
--- a/tests/bash/subshell.sh
+++ b/tests/bash/subshell.sh
@@ -6,3 +6,11 @@ echo "Inbetween stuff"
 (echo "Other subshell"
 echo More stuff in Other subshell
 )
+
+# Issue 457
+
+fn4() (
+    echo "fn4"
+)
+
+fn4
diff --git a/tests/tools/test_bash.py b/tests/tools/test_bash.py
index 6a522ee8..da51465a 100644
--- a/tests/tools/test_bash.py
+++ b/tests/tools/test_bash.py
@@ -351,7 +351,7 @@ def runTest(self):
         dom = cobertura.parseFile(self.outbase + "/kcov/subshell.sh/cobertura.xml")
         self.assertIsNone(cobertura.hitsPerLine(dom, "subshell.sh", 1))
         self.assertEqual(2, cobertura.hitsPerLine(dom, "subshell.sh", 4))
-        self.assertEqual(0, cobertura.hitsPerLine(dom, "subshell.sh", 8))
+        assert cobertura.hitsPerLine(dom, "subshell.sh", 8) is None
 
 
 class bash_handle_all_output(libkcov.TestCase):
@@ -512,3 +512,48 @@ def runTest(self):
         )
         self.assertIsNone(cobertura.hitsPerLine(dom, "long-output-without-return.sh", 1))
         self.assertEqual(32768, cobertura.hitsPerLine(dom, "long-output-without-return.sh", 4))
+
+
+# Issue 457
+class bash_heredoc_with_space(libkcov.TestCase):
+    def runTest(self):
+        rv, o = self.do(
+            self.kcov + " " + self.outbase + "/kcov " + self.sources + "/tests/bash/shell-main"
+        )
+
+        dom = cobertura.parseFile(self.outbase + "/kcov/shell-main/cobertura.xml")
+
+        assert cobertura.hitsPerLine(dom, "shell-main", 184) == 1
+        assert cobertura.hitsPerLine(dom, "shell-main", 185) is None
+        assert cobertura.hitsPerLine(dom, "shell-main", 186) is None
+        assert cobertura.hitsPerLine(dom, "shell-main", 187) is None
+
+        assert cobertura.hitsPerLine(dom, "shell-main", 189) == 1
+        assert cobertura.hitsPerLine(dom, "shell-main", 190) is None
+        assert cobertura.hitsPerLine(dom, "shell-main", 191) is None
+        assert cobertura.hitsPerLine(dom, "shell-main", 192) is None
+
+        assert cobertura.hitsPerLine(dom, "shell-main", 194) == 1
+        assert cobertura.hitsPerLine(dom, "shell-main", 195) is None
+        assert cobertura.hitsPerLine(dom, "shell-main", 196) is None
+        assert cobertura.hitsPerLine(dom, "shell-main", 197) is None
+
+        assert cobertura.hitsPerLine(dom, "shell-main", 199) == 1
+        assert cobertura.hitsPerLine(dom, "shell-main", 200) is None
+        assert cobertura.hitsPerLine(dom, "shell-main", 201) is None
+        assert cobertura.hitsPerLine(dom, "shell-main", 202) is None
+
+
+class bash_subshell_function(libkcov.TestCase):
+    def runTest(self):
+        rv, o = self.do(
+            self.kcov + " " + self.outbase + "/kcov " + self.sources + "/tests/bash/subshell.sh"
+        )
+
+        dom = cobertura.parseFile(self.outbase + "/kcov/subshell.sh/cobertura.xml")
+
+        assert cobertura.hitsPerLine(dom, "subshell.sh", 12) is None
+        assert cobertura.hitsPerLine(dom, "subshell.sh", 13) == 1
+        assert cobertura.hitsPerLine(dom, "subshell.sh", 14) is None
+
+        assert cobertura.hitsPerLine(dom, "subshell.sh", 16) == 1