diff --git a/include/bsputil/bsputil.hh b/include/bsputil/bsputil.hh
index e991a924..4d542b95 100644
--- a/include/bsputil/bsputil.hh
+++ b/include/bsputil/bsputil.hh
@@ -17,6 +17,8 @@
     See file, 'COPYING', for details.
 */
 
+#pragma once
+
 #include <iosfwd>
 
 struct mbsp_t;
diff --git a/include/common/mapfile.hh b/include/common/mapfile.hh
index acb39ea5..813248ea 100644
--- a/include/common/mapfile.hh
+++ b/include/common/mapfile.hh
@@ -18,7 +18,6 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
 See file, 'COPYING', for details.
 */
-// qbsp.h
 
 #pragma once
 
diff --git a/include/common/parallel.hh b/include/common/parallel.hh
index 4a7aa6d1..064f4b01 100644
--- a/include/common/parallel.hh
+++ b/include/common/parallel.hh
@@ -18,6 +18,8 @@
     See file, 'COPYING', for details.
 */
 
+#pragma once
+
 #include "common/log.hh"
 #include <tbb/parallel_for.h>
 #include <tbb/parallel_for_each.h>
diff --git a/include/maputil/maputil.hh b/include/maputil/maputil.hh
index 4d437082..ab2c63c7 100644
--- a/include/maputil/maputil.hh
+++ b/include/maputil/maputil.hh
@@ -17,4 +17,6 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 See file, 'COPYING', for details.
 */
 
+#pragma once
+
 int maputil_main(int argc, char **argv);
diff --git a/include/qbsp/qbsp.hh b/include/qbsp/qbsp.hh
index 2384159c..6196ae3f 100644
--- a/include/qbsp/qbsp.hh
+++ b/include/qbsp/qbsp.hh
@@ -18,7 +18,6 @@
 
     See file, 'COPYING', for details.
 */
-// qbsp.h
 
 #pragma once
 
diff --git a/include/vis/vis.hh b/include/vis/vis.hh
index 46919291..f4825039 100644
--- a/include/vis/vis.hh
+++ b/include/vis/vis.hh
@@ -17,7 +17,7 @@
     See file, 'COPYING', for details.
 */
 
-// vis.h
+#pragma once
 
 #include <common/cmdlib.hh>
 #include <common/mathlib.hh>