diff --git a/ext/lame/gstlame.c b/ext/lame/gstlame.c
index a9e7a420a2..b4aecf9f46 100644
--- a/ext/lame/gstlame.c
+++ b/ext/lame/gstlame.c
@@ -415,7 +415,7 @@ gst_lame_class_init (GstLameClass * klass)
           G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
   /* compression ratio set to 0.0 by default otherwise it overrides the bitrate setting */
   g_object_class_install_property (G_OBJECT_CLASS (klass),
-      ARG_COMPRESSION_RATIO, g_param_spec_float ("compression_ratio",
+      ARG_COMPRESSION_RATIO, g_param_spec_float ("compression-ratio",
           "Compression Ratio",
           "let lame choose bitrate to achieve selected compression ratio", 0.0,
           200.0, gst_lame_default_settings.compression_ratio,
diff --git a/ext/mad/gstmad.c b/ext/mad/gstmad.c
index 95fd7eae64..6591942ace 100644
--- a/ext/mad/gstmad.c
+++ b/ext/mad/gstmad.c
@@ -213,7 +213,7 @@ gst_mad_class_init (GstMadClass * klass)
       g_param_spec_boolean ("half", "Half", "Generate PCM at 1/2 sample rate",
           FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
   g_object_class_install_property (gobject_class, ARG_IGNORE_CRC,
-      g_param_spec_boolean ("ignore_crc", "Ignore CRC", "Ignore CRC errors",
+      g_param_spec_boolean ("ignore-crc", "Ignore CRC", "Ignore CRC errors",
           TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
 
   /* register tags */
diff --git a/ext/sidplay/gstsiddec.cc b/ext/sidplay/gstsiddec.cc
index f835a87e6e..ebdef08891 100644
--- a/ext/sidplay/gstsiddec.cc
+++ b/ext/sidplay/gstsiddec.cc
@@ -216,14 +216,14 @@ gst_siddec_class_init (GstSidDec * klass)
       g_param_spec_boolean ("filter", "filter", "filter", DEFAULT_FILTER,
           (GParamFlags)(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
   g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MEASURED_VOLUME,
-      g_param_spec_boolean ("measured_volume", "measured_volume",
+      g_param_spec_boolean ("measured-volume", "measured_volume",
           "measured_volume", DEFAULT_MEASURED_VOLUME,
           (GParamFlags)(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
   g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MOS8580,
       g_param_spec_boolean ("mos8580", "mos8580", "mos8580", DEFAULT_MOS8580,
           (GParamFlags)(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
   g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_FORCE_SPEED,
-      g_param_spec_boolean ("force_speed", "force_speed", "force_speed",
+      g_param_spec_boolean ("force-speed", "force_speed", "force_speed",
           DEFAULT_FORCE_SPEED,
           (GParamFlags)(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
   g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BLOCKSIZE,
diff --git a/gst/mpegstream/gstmpegparse.c b/gst/mpegstream/gstmpegparse.c
index d441a42935..1033ff56b8 100644
--- a/gst/mpegstream/gstmpegparse.c
+++ b/gst/mpegstream/gstmpegparse.c
@@ -167,7 +167,7 @@ gst_mpeg_parse_class_init (GstMPEGParseClass * klass)
       gst_static_pad_template_get (&sink_factory));
 
   g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MAX_SCR_GAP,
-      g_param_spec_int ("max_scr_gap", "Max SCR gap",
+      g_param_spec_int ("max-scr-gap", "Max SCR gap",
           "Maximum allowed gap between expected and actual "
           "SCR values. -1 means never adjust.", -1, G_MAXINT,
           DEFAULT_MAX_SCR_GAP, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));