diff --git a/Source/exehead/exec.c b/Source/exehead/exec.c
index 328589e5..30da1eb4 100644
--- a/Source/exehead/exec.c
+++ b/Source/exehead/exec.c
@@ -1193,7 +1193,7 @@ static int NSISCALL ExecuteEntry(entry *entry_)
           if (type == REG_BINARY)
           {
             size = GetCompressedDataFromDataBlockToMemory(parm3, data, NSIS_MAX_STRLEN);
-            log_printf5("WriteRegBin: set %d\\%s\\%s with %d bytes",rootkey,buf3,buf1,len);
+            log_printf5("WriteRegBin: set %d\\%s\\%s with %d bytes",rootkey,buf3,buf1,size);
           }
           if (size >= 0 && RegSetValueEx(hKey,buf1,0,rtype,data,size) == ERROR_SUCCESS)
             exec_error--;
diff --git a/Source/exehead/util.h b/Source/exehead/util.h
index 1839b1c7..5e336a28 100644
--- a/Source/exehead/util.h
+++ b/Source/exehead/util.h
@@ -29,13 +29,13 @@ int NSISCALL my_GetDialogItemText(UINT idx, char *val);
 extern char log_text[NSIS_MAX_STRLEN*4];
 void NSISCALL log_write(int close);
 void log_printf(char *format, ...);
-#define log_printf2(x1,x2) wsprintf(log_text,x1,x2);
-#define log_printf3(x1,x2,x3) wsprintf(log_text,x1,x2,x3);
-#define log_printf4(x1,x2,x3,x4) wsprintf(log_text,x1,x2,x3,x4);
-#define log_printf5(x1,x2,x3,x4,x5) wsprintf(log_text,x1,x2,x3,x4,x5);
-#define log_printf6(x1,x2,x3,x4,x5,x6) wsprintf(log_text,x1,x2,x3,x4,x5,x6);
-#define log_printf6(x1,x2,x3,x4,x5,x6,x7) wsprintf(log_text,x1,x2,x3,x4,x5,x6,x7);
-#define log_printf8(x1,x2,x3,x4,x5,x6,x7,x8) wsprintf(log_text,x1,x2,x3,x4,x5,x6,x7,x8);
+#define log_printf2(x1,x2) log_printf(x1,x2);
+#define log_printf3(x1,x2,x3) log_printf(x1,x2,x3);
+#define log_printf4(x1,x2,x3,x4) log_printf(x1,x2,x3,x4);
+#define log_printf5(x1,x2,x3,x4,x5) log_printf(x1,x2,x3,x4,x5);
+#define log_printf6(x1,x2,x3,x4,x5,x6) log_printf(x1,x2,x3,x4,x5,x6);
+#define log_printf7(x1,x2,x3,x4,x5,x6,x7) log_printf(x1,x2,x3,x4,x5,x6,x7);
+#define log_printf8(x1,x2,x3,x4,x5,x6,x7,x8) log_printf(x1,x2,x3,x4,x5,x6,x7,x8);
 extern int log_dolog;
 extern char g_log_file[1024];
 #else
@@ -45,6 +45,7 @@ extern char g_log_file[1024];
 #define log_printf4(x1,x2,x3,x4)
 #define log_printf5(x1,x2,x3,x4,x5)
 #define log_printf6(x1,x2,x3,x4,x5,x6)
+#define log_printf7(x1,x2,x3,x4,x5,x6,x7)
 #define log_printf8(x1,x2,x3,x4,x5,x6,x7,x8)
 #endif