diff --git a/top/e31x/Makefile.e31x.inc b/top/e31x/Makefile.e31x.inc
index c59df54..f18b579 100644
--- a/top/e31x/Makefile.e31x.inc
+++ b/top/e31x/Makefile.e31x.inc
@@ -31,6 +31,7 @@ include $(LIB_DIR)/packet_proc/Makefile.srcs
 include $(LIB_DIR)/dsp/Makefile.srcs
 include $(LIB_DIR)/io_cap_gen/Makefile.srcs
 include $(LIB_DIR)/rfnoc/Makefile.srcs
+
 # For the sake of convenience, we include the Makefile.srcs for the DDC, DUC,
 # radio, replay and FIFO blocks. Any other block needs to use the
 # RFNOC_OOT_MAKEFILE_SRCS variable (see below).
@@ -39,6 +40,7 @@ include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_ddc/Makefile.srcs
 include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_duc/Makefile.srcs
 include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_replay/Makefile.srcs
 include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_axi_ram_fifo/Makefile.srcs
+
 # If out-of-tree modules want to be compiled into this image, then they need to
 # pass in the RFNOC_OOT_MAKEFILE_SRCS as a list of Makefile.srcs files.
 # Those files need to amend the RFNOC_OOT_SRCS variable with a list of actual
diff --git a/top/e320/Makefile.e320.inc b/top/e320/Makefile.e320.inc
index 3d3df81..1f20616 100644
--- a/top/e320/Makefile.e320.inc
+++ b/top/e320/Makefile.e320.inc
@@ -43,11 +43,12 @@ include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_axi_ram_fifo/Makefile.srcs
 include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_radio/Makefile.srcs
 include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_ddc/Makefile.srcs
 include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_duc/Makefile.srcs
+
 # If out-of-tree modules want to be compiled into this image, then they need to
 # pass in the RFNOC_OOT_MAKEFILE_SRCS as a list of Makefile.srcs files.
 # Those files need to amend the RFNOC_OOT_SRCS variable with a list of actual
 # source files.
-include $(RFNOC_OOT_MAKEFILE_SRCS)
+-include $(RFNOC_OOT_MAKEFILE_SRCS)
 
 IMAGE_CORE ?= $(DEFAULT_RFNOC_IMAGE_CORE_FILE)
 EDGE_FILE ?= $(DEFAULT_EDGE_FILE)
diff --git a/top/n3xx/Makefile.n3xx.inc b/top/n3xx/Makefile.n3xx.inc
index 45b7234..d70543c 100644
--- a/top/n3xx/Makefile.n3xx.inc
+++ b/top/n3xx/Makefile.n3xx.inc
@@ -48,11 +48,12 @@ include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_radio/Makefile.srcs
 include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_ddc/Makefile.srcs
 include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_duc/Makefile.srcs
 include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_replay/Makefile.srcs
+
 # If out-of-tree modules want to be compiled into this image, then they need to
 # pass in the RFNOC_OOT_MAKEFILE_SRCS as a list of Makefile.srcs files.
 # Those files need to amend the RFNOC_OOT_SRCS variable with a list of actual
 # source files.
-include $(RFNOC_OOT_MAKEFILE_SRCS)
+-include $(RFNOC_OOT_MAKEFILE_SRCS)
 
 IMAGE_CORE ?= $(DEFAULT_RFNOC_IMAGE_CORE_FILE)
 EDGE_FILE ?= $(DEFAULT_EDGE_FILE)
diff --git a/top/x300/Makefile.x300.inc b/top/x300/Makefile.x300.inc
index 7829d8f..2c039da 100644
--- a/top/x300/Makefile.x300.inc
+++ b/top/x300/Makefile.x300.inc
@@ -47,6 +47,7 @@ include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_radio/Makefile.srcs
 include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_ddc/Makefile.srcs
 include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_duc/Makefile.srcs
 include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_replay/Makefile.srcs
+
 # If out-of-tree modules want to be compiled into this image, then they need to
 # pass in the RFNOC_OOT_MAKEFILE_SRCS as a list of Makefile.srcs files.
 # Those files need to amend the RFNOC_OOT_SRCS variable with a list of actual
diff --git a/top/x400/Makefile.x4xx.inc b/top/x400/Makefile.x4xx.inc
index 773e77f..c6fc382 100644
--- a/top/x400/Makefile.x4xx.inc
+++ b/top/x400/Makefile.x4xx.inc
@@ -55,7 +55,7 @@ include $(LIB_DIR)/rfnoc/blocks/rfnoc_block_replay/Makefile.srcs
 # pass in the RFNOC_OOT_MAKEFILE_SRCS as a list of Makefile.srcs files.
 # Those files need to amend the RFNOC_OOT_SRCS variable with a list of actual
 # source files.
-include $(RFNOC_OOT_MAKEFILE_SRCS)
+-include $(RFNOC_OOT_MAKEFILE_SRCS)
 
 IMAGE_CORE ?= $(DEFAULT_RFNOC_IMAGE_CORE_FILE)
 EDGE_FILE ?= $(DEFAULT_EDGE_FILE)