diff --git a/generators/chm/kio-msits/kio_mits_debug.cpp b/generators/chm/kio-msits/kio_mits_debug.cpp
index 35758e01b..8047d34ac 100644
--- a/generators/chm/kio-msits/kio_mits_debug.cpp
+++ b/generators/chm/kio-msits/kio_mits_debug.cpp
@@ -18,6 +18,6 @@
 */
 
 #include "kio_mits_debug.h"
-Q_LOGGING_CATEGORY(KIO_MITS_LOG, "log_kio_msits")
+Q_LOGGING_CATEGORY(KIO_MITS_LOG, "org.kde.kio.msits")
 
 
diff --git a/generators/fax/fax_debug.cpp b/generators/fax/fax_debug.cpp
index 9913ce64f..5396daa6b 100644
--- a/generators/fax/fax_debug.cpp
+++ b/generators/fax/fax_debug.cpp
@@ -18,6 +18,6 @@
 */
 
 #include "fax_debug.h"
-Q_LOGGING_CATEGORY(FAX_LOG, "log_fax")
+Q_LOGGING_CATEGORY(FAX_LOG, "org.kde.okular.generators.fax")
 
 
diff --git a/generators/spectre/spectre_debug.cpp b/generators/spectre/spectre_debug.cpp
index dc05a1cd9..893d47c3e 100644
--- a/generators/spectre/spectre_debug.cpp
+++ b/generators/spectre/spectre_debug.cpp
@@ -18,6 +18,6 @@
 */
 
 #include "spectre_debug.h"
-Q_LOGGING_CATEGORY(OkularSpectreDebug, "OkularSpectreDebug")
+Q_LOGGING_CATEGORY(OkularSpectreDebug, "org.kde.okular.generators.spectre")