diff --git a/loader/wine/basetsd.h b/loader/wine/basetsd.h
index 4301b8142c..fcccaf1aa7 100644
--- a/loader/wine/basetsd.h
+++ b/loader/wine/basetsd.h
@@ -170,4 +170,4 @@ typedef UINT_PTR SIZE_T, *PSIZE_T;
 } /* extern "C" */
 #endif /* defined(__cplusplus) */
 
-#endif /* !defined(WINE_BASETSD_H) */
+#endif /* WINE_BASETSD_H */
diff --git a/loader/wine/poppack.h b/loader/wine/poppack.h
index 4c43afddc4..0353bfe033 100644
--- a/loader/wine/poppack.h
+++ b/loader/wine/poppack.h
@@ -10,6 +10,6 @@
 #error "Restoration of the previous alignment isn't supported by the compiler"
 #endif /* defined(__GNUC__) || defined(__SUNPRO_C) ; !defined(RC_INVOKED) */
 
-#else /* defined(WINE_PSHPACK_H) */
+#else /* WINE_PSHPACK_H */
 #error "Popping alignment isn't possible since no alignment has been pushed"
-#endif /* defined(WINE_PSHPACK_H) */
+#endif /* WINE_PSHPACK_H */
diff --git a/loader/wine/pshpack1.h b/loader/wine/pshpack1.h
index 642485c936..947b5abba6 100644
--- a/loader/wine/pshpack1.h
+++ b/loader/wine/pshpack1.h
@@ -7,7 +7,7 @@
 #error "1 as alignment isn't supported by the compiler"
 #endif /* defined(__GNUC__) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) ; !defined(RC_INVOKED) */
 
-#else /* !defined(WINE_PSHPACK_H) */
+#else /* WINE_PSHPACK_H */
 #error "Nested pushing of alignment isn't supported by the compiler"
-#endif /* !defined(WINE_PSHPACK_H) */
+#endif /* WINE_PSHPACK_H */
 
diff --git a/loader/wine/pshpack2.h b/loader/wine/pshpack2.h
index a38be46538..ab8f641c5b 100644
--- a/loader/wine/pshpack2.h
+++ b/loader/wine/pshpack2.h
@@ -7,6 +7,6 @@
 #error "2 as alignment isn't supported by the compiler"
 #endif /* defined(__GNUC__) || defined(__SUNPRO_CC) ; !defined(RC_INVOKED) */
 
-#else /* !defined(WINE_PSHPACK_H) */
+#else /* WINE_PSHPACK_H */
 #error "Nested pushing of alignment isn't supported by the compiler"
-#endif /* !defined(WINE_PSHPACK_H) */
+#endif /* WINE_PSHPACK_H */
diff --git a/loader/wine/pshpack4.h b/loader/wine/pshpack4.h
index 0fad88b900..e5516df742 100644
--- a/loader/wine/pshpack4.h
+++ b/loader/wine/pshpack4.h
@@ -9,7 +9,7 @@
 #error "4 as alignment isn't supported by the compiler"
 #endif /* defined(__GNUC__) || defined(__SUNPRO_CC) ; !defined(RC_INVOKED) */
 
-#else /* !defined(WINE_PSHPACK_H) */
+#else /* WINE_PSHPACK_H */
 #error "Nested pushing of alignment isn't supported by the compiler"
-#endif /* !defined(WINE_PSHPACK_H) */
+#endif /* WINE_PSHPACK_H */
 
diff --git a/loader/wine/pshpack8.h b/loader/wine/pshpack8.h
index 2c0da2da5e..9be196c586 100644
--- a/loader/wine/pshpack8.h
+++ b/loader/wine/pshpack8.h
@@ -7,6 +7,6 @@
 #error "8 as alignment is not supported"
 #endif /* 0 ; !defined(RC_INVOKED) */
 
-#else /* !defined(WINE_PSHPACK_H) */
+#else /* WINE_PSHPACK_H */
 #error "Nested pushing of alignment isn't supported by the compiler"
-#endif /* !defined(WINE_PSHPACK_H) */
+#endif /* WINE_PSHPACK_H */