diff --git a/nse_nmaplib.cc b/nse_nmaplib.cc
index a3ef178e8..ed8c24b3c 100644
--- a/nse_nmaplib.cc
+++ b/nse_nmaplib.cc
@@ -663,7 +663,7 @@ static int l_get_version_intensity (lua_State *L)
   lua_pop(L,1);
 
   if (selected_by_name) {
-    lua_pushnumber(L, max_intensity);
+    lua_pushinteger(L, max_intensity);
     return 1;
   }
 
@@ -690,7 +690,7 @@ static int l_get_version_intensity (lua_State *L)
     }
   }
 
-  lua_pushnumber(L, intensity);
+  lua_pushinteger(L, intensity);
 
   return 1;
 }
@@ -704,13 +704,13 @@ static int l_get_verbosity (lua_State *L)
      we lie to it and say the verbosity is one higher than it really is. */
   verbosity += (nse_selectedbyname(L), lua_toboolean(L, -1) ? 1 : 0);
 
-  lua_pushnumber(L, verbosity);
+  lua_pushinteger(L, verbosity);
   return 1;
 }
 
 static int l_get_debugging (lua_State *L)
 {
-  lua_pushnumber(L, o.debugging);
+  lua_pushinteger(L, o.debugging);
   return 1;
 }
 
@@ -735,7 +735,7 @@ static int l_fetchfile (lua_State *L)
 
 static int l_get_timing_level (lua_State *L)
 {
-  lua_pushnumber(L, o.timing_level);
+  lua_pushinteger(L, o.timing_level);
   return 1;
 }
 
@@ -767,18 +767,18 @@ static int l_add_targets (lua_State *L)
     }
     /* was able to add some targets */
     if (ntarget) {
-      lua_pushnumber(L, ntarget);
+      lua_pushinteger(L, ntarget);
       return 1;
     /* errors */
     } else {
-      lua_pushnumber(L, ntarget);
+      lua_pushinteger(L, ntarget);
       lua_pushstring(L, "failed to add new targets.");
       return 2;
     }
   } else {
       /* function called without arguments */
       /* push the number of pending targets that are in the queue */
-      lua_pushnumber(L, NewTargets::insert(""));
+      lua_pushinteger(L, NewTargets::insert(""));
       return 1;
   }
 }
@@ -786,7 +786,7 @@ static int l_add_targets (lua_State *L)
 /* Return the number of added targets */
 static int l_get_new_targets_num (lua_State *L)
 {
-  lua_pushnumber(L, NewTargets::get_number());
+  lua_pushinteger(L, NewTargets::get_number());
   return 1;
 }
 
@@ -943,9 +943,9 @@ static int l_list_interfaces (lua_State *L)
 static int l_get_ttl (lua_State *L)
 {
   if (o.ttl < 0 || o.ttl > 255)
-    lua_pushnumber(L, 64); //default TTL
+    lua_pushinteger(L, 64); //default TTL
   else
-    lua_pushnumber(L, o.ttl);
+    lua_pushinteger(L, o.ttl);
   return 1;
 }
 
@@ -956,9 +956,9 @@ static int l_get_ttl (lua_State *L)
 static int l_get_payload_length(lua_State *L)
 {
   if (o.extra_payload_length < 0)
-    lua_pushnumber(L, 0); //default payload length
+    lua_pushinteger(L, 0); //default payload length
   else
-    lua_pushnumber(L, o.extra_payload_length);
+    lua_pushinteger(L, o.extra_payload_length);
   return 1;
 }
 
diff --git a/nse_openssl.cc b/nse_openssl.cc
index 95b9a8bc9..03aa64c45 100644
--- a/nse_openssl.cc
+++ b/nse_openssl.cc
@@ -139,14 +139,14 @@ static int l_bignum_add( lua_State *L ) /** bignum_add( BIGNUM a, BIGNUM b ) */
 static int l_bignum_num_bits( lua_State *L ) /** bignum_num_bits( BIGNUM bn ) */
 {
   bignum_data_t * userdata = (bignum_data_t *) luaL_checkudata(L, 1, "BIGNUM");
-  lua_pushnumber( L, BN_num_bits( userdata->bn) );
+  lua_pushinteger( L, BN_num_bits( userdata->bn) );
   return 1;
 }
 
 static int l_bignum_num_bytes( lua_State *L ) /** bignum_num_bytes( BIGNUM bn ) */
 {
   bignum_data_t * userdata = (bignum_data_t *) luaL_checkudata(L, 1, "BIGNUM");
-  lua_pushnumber( L, BN_num_bytes( userdata->bn) );
+  lua_pushinteger( L, BN_num_bytes( userdata->bn) );
   return 1;
 }
 
diff --git a/nse_pcrelib.cc b/nse_pcrelib.cc
index 9f6a72dc0..436697e21 100644
--- a/nse_pcrelib.cc
+++ b/nse_pcrelib.cc
@@ -53,7 +53,7 @@ static int udata_tostring (lua_State *L, const char* type_handle,
         return 1;
 }
 
-typedef struct { const char* key; lua_Number val; } flags_pair;
+typedef struct { const char* key; lua_Integer val; } flags_pair;
 
 static int get_flags (lua_State *L, const flags_pair *arr)
 {
@@ -61,7 +61,7 @@ static int get_flags (lua_State *L, const flags_pair *arr)
         lua_newtable(L);
         for(p=arr; p->key != NULL; p++) {
                 lua_pushstring(L, p->key);
-                lua_pushnumber(L, p->val);
+                lua_pushinteger(L, p->val);
                 lua_rawset(L, -3);
         }
         return 1;
@@ -200,9 +200,9 @@ static void Lpcre_push_offsets (lua_State *L, const char *text, pcre2 * ud)
         for (i=1, j=1; i <= (unsigned) ud->ncapt; i++) {
                 k = i * 2;
                 if (ud->match[k] >= 0) {
-                        lua_pushnumber(L, ud->match[k] + 1);
+                        lua_pushinteger(L, ud->match[k] + 1);
                         lua_rawseti(L, -2, j++);
-                        lua_pushnumber(L, ud->match[k+1]);
+                        lua_pushinteger(L, ud->match[k+1]);
                         lua_rawseti(L, -2, j++);
                 }
                 else {
@@ -229,8 +229,8 @@ static int Lpcre_match_generic(lua_State *L, Lpcre_push_matches push_matches)
         res = pcre_exec(ud->pr, ud->extra, text, (int)elen, startoffset, eflags,
                         ud->match, (ud->ncapt + 1) * 3);
         if (res >= 0) {
-                lua_pushnumber(L, (lua_Number) ud->match[0] + 1);
-                lua_pushnumber(L, (lua_Number) ud->match[1]);
+                lua_pushinteger(L, (lua_Number) ud->match[0] + 1);
+                lua_pushinteger(L, (lua_Number) ud->match[1]);
                 (*push_matches)(L, text, ud);
                 return 3;
         }
@@ -279,7 +279,7 @@ static int Lpcre_gmatch(lua_State *L)
                 } else
                         break;
         }
-        lua_pushnumber(L, nmatch);
+        lua_pushinteger(L, nmatch);
         return 1;
 }
 
diff --git a/nse_ssl_cert.cc b/nse_ssl_cert.cc
index 3bd509ddd..2c6e41389 100644
--- a/nse_ssl_cert.cc
+++ b/nse_ssl_cert.cc
@@ -419,18 +419,18 @@ static void tm_to_table(lua_State *L, const struct tm *tm)
 #define NSE_NUM_TM_FIELDS 6
   lua_createtable(L, 0, NSE_NUM_TM_FIELDS);
 
-  lua_pushnumber(L, tm->tm_year);
+  lua_pushinteger(L, tm->tm_year);
   lua_setfield(L, -2, "year");
   /* Lua uses one-indexed months. */
-  lua_pushnumber(L, tm->tm_mon + 1);
+  lua_pushinteger(L, tm->tm_mon + 1);
   lua_setfield(L, -2, "month");
-  lua_pushnumber(L, tm->tm_mday);
+  lua_pushinteger(L, tm->tm_mday);
   lua_setfield(L, -2, "day");
-  lua_pushnumber(L, tm->tm_hour);
+  lua_pushinteger(L, tm->tm_hour);
   lua_setfield(L, -2, "hour");
-  lua_pushnumber(L, tm->tm_min);
+  lua_pushinteger(L, tm->tm_min);
   lua_setfield(L, -2, "min");
-  lua_pushnumber(L, tm->tm_sec);
+  lua_pushinteger(L, tm->tm_sec);
   lua_setfield(L, -2, "sec");
   /* Omit tm_wday and tm_yday. */
 }