diff --git a/tools/wrc/parser.y b/tools/wrc/parser.y
index 3a7c892d37d..f5d847d52e1 100644
--- a/tools/wrc/parser.y
+++ b/tools/wrc/parser.y
@@ -2694,11 +2694,6 @@ static string_t *make_filename(string_t *str)
 		*cptr = '/';
 	}
 
-	/* Convert to lower case. Seems to be reasonable to do */
-	for(cptr = str->str.cstr; !leave_case && *cptr; cptr++)
-	{
-		*cptr = tolower(*cptr);
-	}
 	return str;
 }
 
diff --git a/tools/wrc/wrc.c b/tools/wrc/wrc.c
index df14fe47827..96c653b69fa 100644
--- a/tools/wrc/wrc.c
+++ b/tools/wrc/wrc.c
@@ -104,7 +104,6 @@ static char usage[] =
 	"   -I path     Set include search dir to path (multiple -I allowed)\n"
 	"   -J		Do not search the standard include path\n"
 	"   -l lan      Set default language to lan (default is neutral {0, 0})\n"
-	"   -L          Leave case of embedded filenames as is\n"
 	"   -m          Do not remap numerical resource IDs\n"
 	"   -n          Do not generate .s file\n"
 	"   -N          Do not preprocess input\n"
@@ -251,12 +250,6 @@ int pedantic = 0;
  */
 int auto_register = 0;
 
-/*
- * Set when the case of embedded filenames should not be converted
- * to lower case (-L option)
- */
-int leave_case = 0;
-
 /*
  * The output byte-order of resources (set with -B)
  */
@@ -434,9 +427,6 @@ int main(int argc,char *argv[])
 				currentlanguage = new_language(PRIMARYLANGID(lan), SUBLANGID(lan));
 			}
 			break;
-		case 'L':
-			leave_case = 1;
-			break;
 		case 'm':
 			remap = 0;
 			break;
diff --git a/tools/wrc/wrc.h b/tools/wrc/wrc.h
index de19d526385..09227de90b3 100644
--- a/tools/wrc/wrc.h
+++ b/tools/wrc/wrc.h
@@ -64,7 +64,6 @@ extern int create_s;
 extern DWORD codepage;
 extern int pedantic;
 extern int auto_register;
-extern int leave_case;
 extern int byteorder;
 extern int preprocess_only;
 extern int no_preprocess;