diff --git a/src/V3EmitC.cpp b/src/V3EmitC.cpp
index f70608083..ee0d6b658 100644
--- a/src/V3EmitC.cpp
+++ b/src/V3EmitC.cpp
@@ -1055,7 +1055,7 @@ void EmitCStmts::displayEmit(AstNode* nodep, bool isScan) {
 	// NOP
     } else {
 	// Format
-	bool isStmt;
+	bool isStmt = false;
 	if (AstFScanF* dispp = nodep->castFScanF()) {
 	    isStmt = false;
 	    puts("VL_FSCANF_IX(");
@@ -1086,6 +1086,7 @@ void EmitCStmts::displayEmit(AstNode* nodep, bool isScan) {
 	    dispp->lhsp()->iterate(*this);
 	    putbs(",");
 	} else if (AstSFormatF* dispp = nodep->castSFormatF()) {
+	    isStmt = false;
 	    if (dispp) {}
 	    puts("VL_SFORMATF_NX(");
 	} else {