diff --git a/examples/Add/makefile b/examples/Add/makefile
index c934fa4..70b0e7e 100644
--- a/examples/Add/makefile
+++ b/examples/Add/makefile
@@ -1,6 +1,6 @@
 VERILATOR_ROOT := ../..
 PROJECT_NAME := Add
-SOURCES := *.sv
+SOURCES := $(PROJECT_NAME).sv
 SIMFILES := *.cpp
 
 include $(VERILATOR_ROOT)/verilator.mk
diff --git a/examples/And/makefile b/examples/And/makefile
index 83ea7ca..e26f7ee 100644
--- a/examples/And/makefile
+++ b/examples/And/makefile
@@ -1,6 +1,6 @@
 VERILATOR_ROOT := ../..
 PROJECT_NAME := And
-SOURCES := *.sv
+SOURCES := $(PROJECT_NAME).sv
 SIMFILES := *.cpp
 
 include $(VERILATOR_ROOT)/verilator.mk
diff --git a/examples/Doublesub/makefile b/examples/Doublesub/makefile
index 13771b3..8a58fae 100644
--- a/examples/Doublesub/makefile
+++ b/examples/Doublesub/makefile
@@ -1,6 +1,6 @@
 VERILATOR_ROOT := ../..
 PROJECT_NAME := DoubleSub
-SOURCES := *.sv
+SOURCES := $(PROJECT_NAME).sv
 SIMFILES := *.cpp
 
 include $(VERILATOR_ROOT)/verilator.mk
diff --git a/examples/Hierarchy/Delay/makefile b/examples/Hierarchy/Delay/makefile
index 4008c00..80865d9 100644
--- a/examples/Hierarchy/Delay/makefile
+++ b/examples/Hierarchy/Delay/makefile
@@ -1,6 +1,6 @@
 VERILATOR_ROOT := ../../..
 PROJECT_NAME := Delay
-SOURCES := *.sv
+SOURCES := $(PROJECT_NAME).sv
 SIMFILES := *.cpp
 
 include $(VERILATOR_ROOT)/verilator.mk
diff --git a/examples/Hierarchy/makefile b/examples/Hierarchy/makefile
index 9ffc2d5..d934dcf 100644
--- a/examples/Hierarchy/makefile
+++ b/examples/Hierarchy/makefile
@@ -1,6 +1,6 @@
 VERILATOR_ROOT := ../..
 PROJECT_NAME := Hierarchy
-SOURCES := *.sv
+SOURCES := $(PROJECT_NAME).sv
 SIMFILES := *.cpp
 
 include $(VERILATOR_ROOT)/verilator.mk
diff --git a/examples/States/makefile b/examples/States/makefile
index 4ff506b..621d93d 100644
--- a/examples/States/makefile
+++ b/examples/States/makefile
@@ -1,6 +1,6 @@
 VERILATOR_ROOT := ../..
 PROJECT_NAME := States
-SOURCES := *.sv
+SOURCES := $(PROJECT_NAME).sv
 SIMFILES := *.cpp
 ENUMPARSE := ../../enumparse.py