diff --git a/src/private-frameworks/PowerLog/src/PowerLog.m b/src/private-frameworks/PowerLog/src/PowerLog.m
index 96feddb90..64e9f3914 100644
--- a/src/private-frameworks/PowerLog/src/PowerLog.m
+++ b/src/private-frameworks/PowerLog/src/PowerLog.m
@@ -239,7 +239,7 @@ void* PLLogRegisteredAggregateEvent(void)
     return NULL;
 }
 
-void* PLLogRegisteredEvent(void)
+void* PLLogRegisteredEvent(int client_id, CFStringRef event_name, CFDictionaryRef event_dictionary, void* last_parameter)
 {
     if (verbose) puts("STUB: PLLogRegisteredEvent called");
     return NULL;
@@ -251,7 +251,7 @@ void* PLLogRegisteredEventFilterByInterval(void)
     return NULL;
 }
 
-void* PLLogTimeSensitiveRegisteredEvent(void)
+void* PLLogTimeSensitiveRegisteredEvent(int client_id, CFStringRef event_name, CFDictionaryRef event_dictionary, void* last_parameter)
 {
     if (verbose) puts("STUB: PLLogTimeSensitiveRegisteredEvent called");
     return NULL;
@@ -281,7 +281,7 @@ void* PLShouldLogEvent(void)
     return NULL;
 }
 
-void* PLShouldLogRegisteredEvent(void)
+void* PLShouldLogRegisteredEvent(int client_id, CFStringRef event_name)
 {
     if (verbose) puts("STUB: PLShouldLogRegisteredEvent called");
     return NULL;
diff --git a/src/private-frameworks/ProtocolBuffer/src/ProtocolBuffer.m b/src/private-frameworks/ProtocolBuffer/src/ProtocolBuffer.m
index 4574d3b66..8aaf41678 100644
--- a/src/private-frameworks/ProtocolBuffer/src/ProtocolBuffer.m
+++ b/src/private-frameworks/ProtocolBuffer/src/ProtocolBuffer.m
@@ -164,25 +164,25 @@ BOOL PBReaderPlaceMark(PBDataReader* reader, PBDataReaderMark* mark)
 uint16_t PBReaderReadBigEndianFixed16(PBDataReader* reader)
 {
     if (verbose) puts("STUB: PBReaderReadBigEndianFixed16 called");
-    return;
+    return 0;
 }
 
 uint32_t PBReaderReadBigEndianFixed32(PBDataReader* reader)
 {
     if (verbose) puts("STUB: PBReaderReadBigEndianFixed32 called");
-    return;
+    return 0;
 }
 
 uint64_t PBReaderReadBigEndianFixed64(PBDataReader* reader)
 {
     if (verbose) puts("STUB: PBReaderReadBigEndianFixed64 called");
-    return;
+    return 0;
 }
 
 NSData* PBReaderReadData(PBDataReader* reader)
 {
     if (verbose) puts("STUB: PBReaderReadData called");
-    return;
+    return NULL;
 }
 
 NSString* PBReaderReadString(PBDataReader* reader)
@@ -194,10 +194,10 @@ NSString* PBReaderReadString(PBDataReader* reader)
 void* PBReaderReadVarIntBuf(PBDataReader* reader)
 {
     if (verbose) puts("STUB: PBReaderReadVarIntBuf called");
-    return;
+    return NULL;
 }
 
-void PBReaderRecallMark(PBDataReader* reader, PBDataReaderMark* mark);
+void PBReaderRecallMark(PBDataReader* reader, PBDataReaderMark* mark)
 {
     if (verbose) puts("STUB: PBReaderRecallMark called");
     return;