diff --git a/contrib/oid2name/Makefile b/contrib/oid2name/Makefile
index f6f890ecd5a..f695b4a84e1 100644
--- a/contrib/oid2name/Makefile
+++ b/contrib/oid2name/Makefile
@@ -1,7 +1,7 @@
 # contrib/oid2name/Makefile
 
 PGFILEDESC = "oid2name - examine the file structure"
-PGAPPICON=win32
+PGAPPICON = win32
 
 PROGRAM = oid2name
 OBJS	= oid2name.o
diff --git a/contrib/pg_archivecleanup/Makefile b/contrib/pg_archivecleanup/Makefile
index 2011c145ce1..39c55d8713c 100644
--- a/contrib/pg_archivecleanup/Makefile
+++ b/contrib/pg_archivecleanup/Makefile
@@ -1,7 +1,7 @@
 # contrib/pg_archivecleanup/Makefile
 
 PGFILEDESC = "pg_archivecleanup - cleans archive when used with streaming replication"
-PGAPPICON=win32
+PGAPPICON = win32
 
 PROGRAM = pg_archivecleanup
 OBJS	= pg_archivecleanup.o
diff --git a/contrib/pg_standby/Makefile b/contrib/pg_standby/Makefile
index 43300245cb0..b7c6ae95e7f 100644
--- a/contrib/pg_standby/Makefile
+++ b/contrib/pg_standby/Makefile
@@ -1,7 +1,7 @@
 # contrib/pg_standby/Makefile
 
 PGFILEDESC = "pg_standby - supports creation of a warm standby"
-PGAPPICON=win32
+PGAPPICON = win32
 
 PROGRAM = pg_standby
 OBJS	= pg_standby.o
diff --git a/contrib/pgbench/Makefile b/contrib/pgbench/Makefile
index 5a2b211a7ce..b8f5fb467f6 100644
--- a/contrib/pgbench/Makefile
+++ b/contrib/pgbench/Makefile
@@ -1,7 +1,7 @@
 # contrib/pgbench/Makefile
 
 PGFILEDESC = "pgbench - a simple program for running benchmark tests"
-PGAPPICON=win32
+PGAPPICON = win32
 
 PROGRAM = pgbench
 OBJS	= pgbench.o
diff --git a/contrib/vacuumlo/Makefile b/contrib/vacuumlo/Makefile
index 4dd2ebc03ec..b658f9bf6f8 100644
--- a/contrib/vacuumlo/Makefile
+++ b/contrib/vacuumlo/Makefile
@@ -1,7 +1,7 @@
 # contrib/vacuumlo/Makefile
 
 PGFILEDESC = "vacuumlo - removes orphaned large objects"
-PGAPPICON=win32
+PGAPPICON = win32
 
 PROGRAM = vacuumlo
 OBJS	= vacuumlo.o