diff --git a/Changes b/Changes
index 7cb2dbf60..4b04c67b8 100644
--- a/Changes
+++ b/Changes
@@ -3,6 +3,11 @@ Revision history for Verilator
 The contributors that suggested a given feature are shown in [].  [by ...]
 indicates the contributor was also the author of the fix; Thanks!
 
+* Verilator 3.848 devel
+
+****  Fix arrayed input compile error, bug645. [Krzysztof Jankowski]
+
+
 * Verilator 3.847 2013-05-11
 
 ***   Add ALWCOMBORDER warning.  [KC Buckenmaier]
diff --git a/src/V3EmitC.cpp b/src/V3EmitC.cpp
index 1c37b4289..f763ce446 100644
--- a/src/V3EmitC.cpp
+++ b/src/V3EmitC.cpp
@@ -906,12 +906,12 @@ void EmitCStmts::emitVarDecl(AstVar* nodep, const string& prefixIfImp) {
 	    else if (nodep->isOutput()) puts("VL_OUT");
 	    else nodep->v3fatalSrc("Unknown type");
 
-	    if (nodep->isQuad()) puts("64");
-	    else if (nodep->widthMin() <= 8) puts("8");
-	    else if (nodep->widthMin() <= 16) puts("16");
+	    if (basicp->isQuad()) puts("64");
+	    else if (basicp->widthMin() <= 8) puts("8");
+	    else if (basicp->widthMin() <= 16) puts("16");
+	    else if (basicp->isWide()) puts("W");
 
 	    if (isArray) {
-		if (nodep->isWide()) puts("W");
 		puts("("+nodep->name());
 		for (AstUnpackArrayDType* arrayp=nodep->dtypeSkipRefp()->castUnpackArrayDType(); arrayp;
 		     arrayp = arrayp->subDTypep()->skipRefp()->castUnpackArrayDType()) {
@@ -924,7 +924,7 @@ void EmitCStmts::emitVarDecl(AstVar* nodep, const string& prefixIfImp) {
 		    puts("("+nodep->name()
 			 +","+cvtToStr(basicp->msb())
 			 +","+cvtToStr(basicp->lsb()));
-		else puts("W("+nodep->name()
+		else puts("("+nodep->name()
 			  +","+cvtToStr(basicp->msb())
 			  +","+cvtToStr(basicp->lsb())
 			  +","+cvtToStr(basicp->widthWords()));
diff --git a/test_regress/t/t_mem_multi_io2_cc.pl b/test_regress/t/t_mem_multi_io2_cc.pl
index 7433eb85b..c5708fba8 100755
--- a/test_regress/t/t_mem_multi_io2_cc.pl
+++ b/test_regress/t/t_mem_multi_io2_cc.pl
@@ -14,7 +14,7 @@ $Self->{vlt} or $Self->skip("Verilator only test");
 compile (
 	 make_top_shell => 0,
 	 make_main => 0,
-	 verilator_flags2 => ["--exe $Self->{t_dir}/t_mem_multi_io2.cpp"],
+	 verilator_flags2 => ["--exe $Self->{t_dir}/t_mem_multi_io2.cpp -Oi"],
     );
 
 execute (
diff --git a/test_regress/t/t_mem_multi_io2_sc.pl b/test_regress/t/t_mem_multi_io2_sc.pl
index a2693e658..24a2f0b76 100755
--- a/test_regress/t/t_mem_multi_io2_sc.pl
+++ b/test_regress/t/t_mem_multi_io2_sc.pl
@@ -14,7 +14,7 @@ $Self->{vlt} or $Self->skip("Verilator only test");
 compile (
 	 make_top_shell => 0,
 	 make_main => 0,
-	 verilator_flags2 => ["--exe $Self->{t_dir}/t_mem_multi_io2.cpp --sc"],
+	 verilator_flags2 => ["--exe $Self->{t_dir}/t_mem_multi_io2.cpp --sc -Oi"],
     );
 
 execute (