diff --git a/src/bin/pg_basebackup/bbstreamer_gzip.c b/src/bin/pg_basebackup/bbstreamer_gzip.c
index d5b38ec4bc..1ab7ee6ea9 100644
--- a/src/bin/pg_basebackup/bbstreamer_gzip.c
+++ b/src/bin/pg_basebackup/bbstreamer_gzip.c
@@ -116,6 +116,7 @@ bbstreamer_gzip_writer_new(char *pathname, FILE *file,
 	return &streamer->base;
 #else
 	pg_fatal("this build does not support gzip compression");
+	return NULL;				/* keep compiler quiet */
 #endif
 }
 
@@ -248,6 +249,7 @@ bbstreamer_gzip_decompressor_new(bbstreamer *next)
 	return &streamer->base;
 #else
 	pg_fatal("this build does not support gzip compression");
+	return NULL;				/* keep compiler quiet */
 #endif
 }
 
diff --git a/src/bin/pg_basebackup/bbstreamer_lz4.c b/src/bin/pg_basebackup/bbstreamer_lz4.c
index 93f8344ea3..2f75ba5602 100644
--- a/src/bin/pg_basebackup/bbstreamer_lz4.c
+++ b/src/bin/pg_basebackup/bbstreamer_lz4.c
@@ -99,6 +99,7 @@ bbstreamer_lz4_compressor_new(bbstreamer *next, bc_specification *compress)
 	return &streamer->base;
 #else
 	pg_fatal("this build does not support lz4 compression");
+	return NULL;				/* keep compiler quiet */
 #endif
 }
 
@@ -296,6 +297,7 @@ bbstreamer_lz4_decompressor_new(bbstreamer *next)
 	return &streamer->base;
 #else
 	pg_fatal("this build does not support lz4 compression");
+	return NULL;				/* keep compiler quiet */
 #endif
 }
 
diff --git a/src/bin/pg_basebackup/bbstreamer_zstd.c b/src/bin/pg_basebackup/bbstreamer_zstd.c
index e2c76503cc..a5167e9fea 100644
--- a/src/bin/pg_basebackup/bbstreamer_zstd.c
+++ b/src/bin/pg_basebackup/bbstreamer_zstd.c
@@ -117,6 +117,7 @@ bbstreamer_zstd_compressor_new(bbstreamer *next, bc_specification *compress)
 	return &streamer->base;
 #else
 	pg_fatal("this build does not support zstd compression");
+	return NULL;				/* keep compiler quiet */
 #endif
 }
 
@@ -271,6 +272,7 @@ bbstreamer_zstd_decompressor_new(bbstreamer *next)
 	return &streamer->base;
 #else
 	pg_fatal("this build does not support zstd compression");
+	return NULL;				/* keep compiler quiet */
 #endif
 }