diff --git a/docs/USAGE.md b/docs/USAGE.md
index 7b8bbe1b9..2204e2170 100755
--- a/docs/USAGE.md
+++ b/docs/USAGE.md
@@ -206,7 +206,7 @@ Handling of x87 80bits long double
 * 0 : Try to handle 80bits long double as precise as possible (Default)
 * 1 : Handle them as double
 
-#### BOX64_MAXCPU
+#### BOX86_MAXCPU
 Maximum CPU Core exposed
 * 0 : Don't cap the number of cpu core exposed (Default)
 * XXX : Cap the maximum CPU Core exposed to XXX (usefull with wine64 or GridAutosport for example)
diff --git a/src/main.c b/src/main.c
index d9025f237..802652b58 100644
--- a/src/main.c
+++ b/src/main.c
@@ -761,7 +761,7 @@ void LoadLogEnv()
         if(box86_showbt)
             printf_log(LOG_INFO, "Show Backtrace for signals\n");
     }
-    p = getenv("BOX64_MAXCPU");
+    p = getenv("BOX86_MAXCPU");
     if(p) {
         int maxcpu = 0;
         if(sscanf(p, "%d", &maxcpu)==1)
@@ -903,8 +903,8 @@ void PrintFlags() {
     printf(" BOX86_LIBGL=libXXXX set the name (and optionnaly full path) for libGL.so.1\n");
     printf(" BOX86_LD_PRELOAD=XXXX[:YYYYY] force loading XXXX (and YYYY...) libraries with the binary\n");
     printf(" BOX86_ALLOWMISSINGLIBS with 1 to allow to continue even if a lib is missing (unadvised, will probably crash later)\n");
-    printf(" BOX64_PREFER_EMULATED=1 to prefer emulated libs first (execpt for glibc, alsa, pulse, GL, vulkan and X11)\n");
-    printf(" BOX64_PREFER_WRAPPED if box86 will use wrapped libs even if the lib is specified with absolute path\n");
+    printf(" BOX86_PREFER_EMULATED=1 to prefer emulated libs first (execpt for glibc, alsa, pulse, GL, vulkan and X11)\n");
+    printf(" BOX86_PREFER_WRAPPED if box86 will use wrapped libs even if the lib is specified with absolute path\n");
     printf(" BOX86_NOPULSE=1 to disable the loading of pulseaudio libs\n");
     printf(" BOX86_NOGTK=1 to disable the loading of wrapped gtk libs\n");
     printf(" BOX86_NOVULKAN=1 to disable the loading of wrapped vulkan libs\n");
@@ -1321,7 +1321,7 @@ int main(int argc, const char **argv, char **env)
 
     // check BOX86_LOG debug level
     LoadLogEnv();
-    if(!getenv("BOX64_NORCFILES")) {
+    if(!getenv("BOX86_NORCFILES")) {
         load_rcfiles();
     }
     char* bashpath = NULL;
diff --git a/src/tools/rcfile.c b/src/tools/rcfile.c
index 5c7eaced7..8be6c16db 100644
--- a/src/tools/rcfile.c
+++ b/src/tools/rcfile.c
@@ -110,7 +110,7 @@ IGNORE(BOX86_DYNAREC_X87DOUBLE)                                     \
 IGNORE(BOX86_DYNAREC_FASTNAN)                                       \
 IGNORE(BOX86_DYNAREC_FASTROUND)                                     \
 IGNORE(BOX86_DYNAREC_SAFEFLAGS)                                     \
-IGNORE(BOX64_DYNAREC_CALLRET)                                       \
+IGNORE(BOX86_DYNAREC_CALLRET)                                       \
 IGNORE(BOX86_DYNAREC_HOTPAGE)                                       \
 IGNORE(BOX86_DYNAREC_FASTPAGE)                                      \
 IGNORE(BOX86_DYNAREC_WAIT)                                          \