diff --git a/src/backend/postmaster/auxprocess.c b/src/backend/postmaster/auxprocess.c
index 4f6795f7265..a6d3630398f 100644
--- a/src/backend/postmaster/auxprocess.c
+++ b/src/backend/postmaster/auxprocess.c
@@ -66,7 +66,7 @@ AuxiliaryProcessMainCommon(void)
 
 	BaseInit();
 
-	ProcSignalInit(false, 0);
+	ProcSignalInit(NULL, 0);
 
 	/*
 	 * Auxiliary processes don't run transactions, but they may need a
diff --git a/src/backend/utils/init/globals.c b/src/backend/utils/init/globals.c
index 92304a1f124..1847e7c85d3 100644
--- a/src/backend/utils/init/globals.c
+++ b/src/backend/utils/init/globals.c
@@ -51,7 +51,7 @@ TimestampTz MyStartTimestamp;
 struct ClientSocket *MyClientSocket;
 struct Port *MyProcPort;
 char		MyCancelKey[MAX_CANCEL_KEY_LENGTH];
-uint8		MyCancelKeyLength = 0;
+int			MyCancelKeyLength = 0;
 int			MyPMChildSlot;
 
 /*
diff --git a/src/include/miscadmin.h b/src/include/miscadmin.h
index 58b2496a9cb..72f5655fb34 100644
--- a/src/include/miscadmin.h
+++ b/src/include/miscadmin.h
@@ -193,7 +193,7 @@ extern PGDLLIMPORT TimestampTz MyStartTimestamp;
 extern PGDLLIMPORT struct Port *MyProcPort;
 extern PGDLLIMPORT struct Latch *MyLatch;
 extern PGDLLIMPORT char MyCancelKey[];
-extern PGDLLIMPORT uint8 MyCancelKeyLength;
+extern PGDLLIMPORT int MyCancelKeyLength;
 extern PGDLLIMPORT int MyPMChildSlot;
 
 extern PGDLLIMPORT char OutputFileName[];