diff --git a/src/modules/module-sine-source.c b/src/modules/module-sine-source.c
index 1b8e7b3c7..79d3b1378 100644
--- a/src/modules/module-sine-source.c
+++ b/src/modules/module-sine-source.c
@@ -96,9 +96,9 @@ static int source_process_msg(
 
     switch (code) {
 
-        case PA_SINK_MESSAGE_SET_STATE:
+        case PA_SOURCE_MESSAGE_SET_STATE:
 
-            if (PA_PTR_TO_UINT(data) == PA_SINK_RUNNING)
+            if (PA_PTR_TO_UINT(data) == PA_SOURCE_RUNNING)
                 u->timestamp = pa_rtclock_usec();
 
             break;