diff --git a/libsecret/secret-version.h.in b/libsecret/secret-version.h.in
index 30a8389..6b777e9 100644
--- a/libsecret/secret-version.h.in
+++ b/libsecret/secret-version.h.in
@@ -16,7 +16,8 @@
 #error "Only <libsecret/secret.h> can be included directly."
 #endif
 
-#pragma __once__
+#ifndef __SECRET_VERSION_H__
+#define __SECRET_VERSION_H__
 
 /**
  * SECTION:secret-version
@@ -63,3 +64,5 @@
      (SECRET_MAJOR_VERSION == (major) &&                \
       SECRET_MINOR_VERSION == (minor) &&                \
       SECRET_MICRO_VERSION >= (micro)))
+
+#endif __SECRET_VERSION_H__