diff --git a/SConstruct b/SConstruct
index 625dfe3a7..060b7f923 100644
--- a/SConstruct
+++ b/SConstruct
@@ -50,8 +50,6 @@ if 'clean' in COMMAND_LINE_TARGETS:
     removeFile('.sconsign.dblite')
     removeFile('include/cantera/base/config.h')
     removeFile('ext/f2c_libs/arith.h')
-    removeFile('ext/f2c_libs/signal1.h')
-    removeFile('ext/f2c_libs/sysdep1.h')
     for name in os.listdir('.'):
         if name.endswith('.msi'):
             removeFile(name)
diff --git a/ext/SConscript b/ext/SConscript
index 45916f9d7..661a0abca 100644
--- a/ext/SConscript
+++ b/ext/SConscript
@@ -81,14 +81,6 @@ if env['build_with_f2c']:
         arithenv.Command('#ext/f2c_libs/arith.h', 'f2c_libs/arithchk/arithchk$PROGSUFFIX',
                          '$SOURCE > $TARGET')
 
-    headerenv = prep_f2c(env)
-    # Possibly system-dependent headers
-    headerenv.Command('#ext/f2c_libs/signal1.h', 'f2c_libs/signal1.h0',
-                      Copy('$TARGET', '$SOURCE'))
-
-    headerenv.Command('#ext/f2c_libs/sysdep1.h', 'f2c_libs/sysdep1.h0',
-                      Copy('$TARGET', '$SOURCE'))
-
     libs.append(('f2c_libs', 'c', prep_f2c))
 
     if env['BUILD_BLAS_LAPACK']:
diff --git a/ext/f2c_libs/.gitignore b/ext/f2c_libs/.gitignore
index be02f378b..4ed511628 100644
--- a/ext/f2c_libs/.gitignore
+++ b/ext/f2c_libs/.gitignore
@@ -1,3 +1 @@
 arith.h
-signal1.h
-sysdep1.h
diff --git a/ext/f2c_libs/signal1.h0 b/ext/f2c_libs/signal1.h
similarity index 100%
rename from ext/f2c_libs/signal1.h0
rename to ext/f2c_libs/signal1.h
diff --git a/ext/f2c_libs/sysdep1.h0 b/ext/f2c_libs/sysdep1.h
similarity index 100%
rename from ext/f2c_libs/sysdep1.h0
rename to ext/f2c_libs/sysdep1.h