diff --git a/lib/xdg-app-installation.h b/lib/xdg-app-installation.h
index 16a44e44c..095897458 100644
--- a/lib/xdg-app-installation.h
+++ b/lib/xdg-app-installation.h
@@ -19,7 +19,7 @@
  */
 
 #if !defined (__XDG_APP_H_INSIDE__) && !defined (XDG_APP_COMPILATION)
-#error "Only <xdg-app.h> can be included installationectly."
+#error "Only <xdg-app.h> can be included directly."
 #endif
 
 #ifndef __XDG_APP_INSTALLATION_H__
diff --git a/lib/xdg-app-installed-ref-private.h b/lib/xdg-app-installed-ref-private.h
index 691f49011..c192aa65c 100644
--- a/lib/xdg-app-installed-ref-private.h
+++ b/lib/xdg-app-installed-ref-private.h
@@ -19,7 +19,7 @@
  */
 
 #if !defined (__XDG_APP_H_INSIDE__) && !defined (XDG_APP_COMPILATION)
-#error "Only <xdg-app.h> can be included installed_refectly."
+#error "Only <xdg-app.h> can be included directly."
 #endif
 
 #ifndef __XDG_APP_INSTALLED_REF_PRIVATE_H__
diff --git a/lib/xdg-app-installed-ref.h b/lib/xdg-app-installed-ref.h
index 28acd474e..624bf8ad4 100644
--- a/lib/xdg-app-installed-ref.h
+++ b/lib/xdg-app-installed-ref.h
@@ -19,7 +19,7 @@
  */
 
 #if !defined (__XDG_APP_H_INSIDE__) && !defined (XDG_APP_COMPILATION)
-#error "Only <xdg-app.h> can be included installed_refectly."
+#error "Only <xdg-app.h> can be included directly."
 #endif
 
 #ifndef __XDG_APP_INSTALLED_REF_H__
diff --git a/lib/xdg-app-ref.h b/lib/xdg-app-ref.h
index 26f3bc10e..afa4abbac 100644
--- a/lib/xdg-app-ref.h
+++ b/lib/xdg-app-ref.h
@@ -19,7 +19,7 @@
  */
 
 #if !defined (__XDG_APP_H_INSIDE__) && !defined (XDG_APP_COMPILATION)
-#error "Only <xdg-app.h> can be included refectly."
+#error "Only <xdg-app.h> can be included directly."
 #endif
 
 #ifndef __XDG_APP_REF_H__
diff --git a/lib/xdg-app-remote-private.h b/lib/xdg-app-remote-private.h
index bd284911b..fc3700ff9 100644
--- a/lib/xdg-app-remote-private.h
+++ b/lib/xdg-app-remote-private.h
@@ -19,7 +19,7 @@
  */
 
 #if !defined (__XDG_APP_H_INSIDE__) && !defined (XDG_APP_COMPILATION)
-#error "Only <xdg-app.h> can be included installed_refectly."
+#error "Only <xdg-app.h> can be included directly."
 #endif
 
 #ifndef __XDG_APP_REMOTE_PRIVATE_H__
diff --git a/lib/xdg-app-remote-ref-private.h b/lib/xdg-app-remote-ref-private.h
index 5017809c2..9ad1242ec 100644
--- a/lib/xdg-app-remote-ref-private.h
+++ b/lib/xdg-app-remote-ref-private.h
@@ -19,7 +19,7 @@
  */
 
 #if !defined (__XDG_APP_H_INSIDE__) && !defined (XDG_APP_COMPILATION)
-#error "Only <xdg-app.h> can be included remote_refectly."
+#error "Only <xdg-app.h> can be included directly."
 #endif
 
 #ifndef __XDG_APP_REMOTE_REF_PRIVATE_H__
diff --git a/lib/xdg-app-remote-ref.h b/lib/xdg-app-remote-ref.h
index b9868862e..0198fc0a3 100644
--- a/lib/xdg-app-remote-ref.h
+++ b/lib/xdg-app-remote-ref.h
@@ -19,7 +19,7 @@
  */
 
 #if !defined (__XDG_APP_H_INSIDE__) && !defined (XDG_APP_COMPILATION)
-#error "Only <xdg-app.h> can be included remote_refectly."
+#error "Only <xdg-app.h> can be included directly."
 #endif
 
 #ifndef __XDG_APP_REMOTE_REF_H__
diff --git a/lib/xdg-app-remote.h b/lib/xdg-app-remote.h
index e3867b3ba..fd66cb5c8 100644
--- a/lib/xdg-app-remote.h
+++ b/lib/xdg-app-remote.h
@@ -19,7 +19,7 @@
  */
 
 #if !defined (__XDG_APP_H_INSIDE__) && !defined (XDG_APP_COMPILATION)
-#error "Only <xdg-app.h> can be included remoteectly."
+#error "Only <xdg-app.h> can be included directly."
 #endif
 
 #ifndef __XDG_APP_REMOTE_H__