diff --git a/src/V3Assert.cpp b/src/V3Assert.cpp
index 91ae114ca..6135eabde 100644
--- a/src/V3Assert.cpp
+++ b/src/V3Assert.cpp
@@ -20,6 +20,7 @@
 #include "V3Assert.h"
 
 #include "V3Ast.h"
+#include "V3Error.h"
 #include "V3Global.h"
 #include "V3Stats.h"
 
diff --git a/src/V3Assert.h b/src/V3Assert.h
index 0715dd405..dcf26756a 100644
--- a/src/V3Assert.h
+++ b/src/V3Assert.h
@@ -21,7 +21,6 @@
 #include "verilatedos.h"
 
 #include "V3Ast.h"
-#include "V3Error.h"
 
 //============================================================================
 
diff --git a/src/V3Options.cpp b/src/V3Options.cpp
index 9c309bc09..d6d3fec8e 100644
--- a/src/V3Options.cpp
+++ b/src/V3Options.cpp
@@ -23,6 +23,7 @@
 #include "V3Error.h"
 #include "V3File.h"
 #include "V3Global.h"
+#include "V3Mutex.h"
 #include "V3OptionParser.h"
 #include "V3Os.h"
 #include "V3PreShell.h"
diff --git a/src/V3Options.h b/src/V3Options.h
index 360c28b53..7e6b639b3 100644
--- a/src/V3Options.h
+++ b/src/V3Options.h
@@ -22,7 +22,6 @@
 
 #include "V3Error.h"
 #include "V3LangCode.h"
-#include "V3Mutex.h"
 
 #include <map>
 #include <set>