diff --git a/src/Nixfmt/Lexer.hs b/src/Nixfmt/Lexer.hs
index 1cbb798e..b34edecf 100644
--- a/src/Nixfmt/Lexer.hs
+++ b/src/Nixfmt/Lexer.hs
@@ -71,7 +71,7 @@ lineComment :: Parser ParseTrivium
 lineComment = preLexeme $ do
   SourcePos{sourceColumn = col} <- getSourcePos
   _ <- chunk "#"
-  text <- manyP (\x -> x /= '\n' && x /= '\r')
+  text <- stripEnd <$> manyP (\x -> x /= '\n' && x /= '\r')
   return (PTLineComment text col)
 
 blockComment :: Parser ParseTrivium
diff --git a/test/diff/strip_space/in.nix b/test/diff/strip_space/in.nix
new file mode 100644
index 00000000..00b0ca66
--- /dev/null
+++ b/test/diff/strip_space/in.nix
@@ -0,0 +1,10 @@
+/*
+  a 
+  b	
+*/
+# a 
+# b	
+{
+  a = 1; 
+  b = 2;	
+}
diff --git a/test/diff/strip_space/out-pure.nix b/test/diff/strip_space/out-pure.nix
new file mode 100644
index 00000000..60082668
--- /dev/null
+++ b/test/diff/strip_space/out-pure.nix
@@ -0,0 +1,10 @@
+/*
+  a
+  b
+*/
+# a
+# b
+{
+  a = 1;
+  b = 2;
+}
diff --git a/test/diff/strip_space/out.nix b/test/diff/strip_space/out.nix
new file mode 100644
index 00000000..60082668
--- /dev/null
+++ b/test/diff/strip_space/out.nix
@@ -0,0 +1,10 @@
+/*
+  a
+  b
+*/
+# a
+# b
+{
+  a = 1;
+  b = 2;
+}