diff --git a/.editorconfig b/.editorconfig
index 5a4d42e..1212197 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -8,6 +8,11 @@ tab_width = 4
 indent_size = 4
 indent_style = tab
 
+[makefile]
+tab_width = 4
+indent_size = 4
+indent_style = tab
+
 [*.d]
 dfmt_align_switch_statements = true
 dfmt_brace_style = allman
diff --git a/dub.json b/dub.json
index 342913a..fcab561 100644
--- a/dub.json
+++ b/dub.json
@@ -1,10 +1,10 @@
 {
     "name": "dfmt",
     "description": "Dfmt is a formatter for D source code",
-    "version": "0.2.2",
+    "version": "0.3.1",
     "targetType": "executable",
 	"license": "BSL-1.0",
     "dependencies": {
       "libdparse": "~master"
-    },
+    }
 }
diff --git a/libdparse b/libdparse
index 617b7c6..f0bb347 160000
--- a/libdparse
+++ b/libdparse
@@ -1 +1 @@
-Subproject commit 617b7c6f2c33cf7121c75ed2b88460d1416eb85c
+Subproject commit f0bb347b9aa9f9cb487531debc67c91057d602aa
diff --git a/src/dfmt/formatter.d b/src/dfmt/formatter.d
index d351285..669f3a3 100644
--- a/src/dfmt/formatter.d
+++ b/src/dfmt/formatter.d
@@ -763,7 +763,7 @@ private:
             formatAt();
             break;
         case tok!"!":
-            if (peekIs(tok!"is") && !peekBackIsOneOf(false, tok!"(", tok!"="))
+            if ((peekIs(tok!"is") || peekIs(tok!"in")) && !peekBackIsOneOf(false, tok!"(", tok!"="))
                 write(" ");
             goto case;
         case tok!"...":
diff --git a/src/dfmt/main.d b/src/dfmt/main.d
index 39f0211..47abb65 100644
--- a/src/dfmt/main.d
+++ b/src/dfmt/main.d
@@ -62,7 +62,7 @@ else
                 "indent_style|t", &optConfig.indent_style,
                 "inplace", &inplace,
                 "max_line_length", &optConfig.max_line_length,
-                "max_line_length", &optConfig.max_line_length,
+                "soft_max_line_length", &optConfig.dfmt_soft_max_line_length,
                 "outdent_attributes", &handleBooleans,
                 "outdent_labels", &handleBooleans,
                 "space_after_cast", &handleBooleans,
@@ -144,7 +144,7 @@ else
 
 private void printHelp()
 {
-    writeln(`dfmt 0.3.0-dev
+    writeln(`dfmt 0.3.1
 
 Options:
     --help | -h            Print this help message
@@ -158,7 +158,7 @@ Formatting Options:
     --indent_size
     --indent_style|t
     --inplace
-    --max_line_length
+    --soft_max_line_length
     --max_line_length
     --outdent_attributes
     --outdent_labels
diff --git a/tests/allman/issue0136.d.ref b/tests/allman/issue0136.d.ref
new file mode 100644
index 0000000..c5d8941
--- /dev/null
+++ b/tests/allman/issue0136.d.ref
@@ -0,0 +1,4 @@
+unittest
+{
+    auto result = name !in aa;
+}
diff --git a/tests/issue0136.d b/tests/issue0136.d
new file mode 100644
index 0000000..076bab8
--- /dev/null
+++ b/tests/issue0136.d
@@ -0,0 +1,4 @@
+unittest
+{
+	auto result = name !in aa;
+}
diff --git a/tests/otbs/issue0136.d.ref b/tests/otbs/issue0136.d.ref
new file mode 100644
index 0000000..9f04038
--- /dev/null
+++ b/tests/otbs/issue0136.d.ref
@@ -0,0 +1,3 @@
+unittest {
+    auto result = name !in aa;
+}