diff --git a/src/arm/midr.c b/src/arm/midr.c
index f59f2b1..f7b2117 100644
--- a/src/arm/midr.c
+++ b/src/arm/midr.c
@@ -13,8 +13,6 @@
 #include "uarch.h"
 #include "soc.h"
 
-#define STRING_UNKNOWN    "Unknown"
-
 void init_cache_struct(struct cache* cach) {
   cach->L1i = emalloc(sizeof(struct cach));
   cach->L1d = emalloc(sizeof(struct cach));
diff --git a/src/arm/soc.c b/src/arm/soc.c
index b28b934..7097563 100644
--- a/src/arm/soc.c
+++ b/src/arm/soc.c
@@ -9,7 +9,6 @@
 #include "../common/global.h"
 
 #define min(a,b) (((a)<(b))?(a):(b))
-#define STRING_UNKNOWN    "Unknown"
 #define ARRAY_SIZE(arr)     (sizeof(arr) / sizeof((arr)[0]))
 
 static char* soc_trademark_string[] = {
diff --git a/src/arm/uarch.c b/src/arm/uarch.c
index 9da5461..c006c93 100644
--- a/src/arm/uarch.c
+++ b/src/arm/uarch.c
@@ -7,8 +7,6 @@
 #include "uarch.h"
 #include "../common/global.h"
 
-#define STRING_UNKNOWN    "Unknown"
-
 // Data not available
 #define NA                   -1
 
diff --git a/src/common/cpu.c b/src/common/cpu.c
index d3dc049..3f37c11 100644
--- a/src/common/cpu.c
+++ b/src/common/cpu.c
@@ -15,7 +15,6 @@
   #include "../arm/uarch.h"
 #endif
 
-#define STRING_UNKNOWN    "Unknown"
 #define STRING_YES        "Yes"
 #define STRING_NO         "No"
 #define STRING_NONE       "None"
diff --git a/src/common/global.h b/src/common/global.h
index 92afce2..f0e9118 100644
--- a/src/common/global.h
+++ b/src/common/global.h
@@ -4,6 +4,8 @@
 #include <stdbool.h>
 #include <stddef.h>
 
+#define STRING_UNKNOWN "Unknown"
+
 void set_log_level(bool verbose);
 void printWarn(const char *fmt, ...);
 void printErr(const char *fmt, ...);
diff --git a/src/ppc/ppc.c b/src/ppc/ppc.c
index 1a69b5b..00720fa 100644
--- a/src/ppc/ppc.c
+++ b/src/ppc/ppc.c
@@ -11,8 +11,6 @@
 #include "../common/udev.h"
 #include "../common/global.h"
 
-#define STRING_UNKNOWN    "Unknown"
-
 void init_topology_struct(struct topology* topo, struct cache* cach) {
   topo->total_cores = 0;
   topo->physical_cores = 0;
diff --git a/src/ppc/uarch.c b/src/ppc/uarch.c
index 61eda1d..ec0aa70 100644
--- a/src/ppc/uarch.c
+++ b/src/ppc/uarch.c
@@ -11,8 +11,6 @@
 
 typedef uint32_t MICROARCH;
 
-#define STRING_UNKNOWN    "Unknown"
-
 // Data not available
 #define NA                   -1
 
@@ -69,7 +67,7 @@ void fill_uarch(struct uarch* arch, MICROARCH u) {
   bool fill = false;
 
   FILL_START
-  FILL_UARCH(arch->uarch, UARCH_UNKNOWN,     "Unknown",       UNK)
+  FILL_UARCH(arch->uarch, UARCH_UNKNOWN,     STRING_UNKNOWN,  UNK)
   FILL_UARCH(arch->uarch, UARCH_PPC604,      "PowerPC 604",   500)
   FILL_UARCH(arch->uarch, UARCH_PPCG3,       "PowerPC G3",    UNK) // varies
   FILL_UARCH(arch->uarch, UARCH_PPCG4,       "PowerPC G4",    UNK) // varies
diff --git a/src/x86/cpuid.c b/src/x86/cpuid.c
index 6c307d8..c7d5422 100644
--- a/src/x86/cpuid.c
+++ b/src/x86/cpuid.c
@@ -37,11 +37,9 @@ static char *hv_vendors_name[] = {
   [HV_VENDOR_VMWARE]    = "VMware",
   [HV_VENDOR_XEN]       = "Xen",
   [HV_VENDOR_PARALLELS] = "Parallels",
-  [HV_VENDOR_INVALID]   = "Unknown"
+  [HV_VENDOR_INVALID]   = STRING_UNKNOWN
 };
 
-#define STRING_UNKNOWN    "Unknown"
-
 #define HYPERVISOR_NAME_MAX_LENGTH 17
 
 #define MASK 0xFF
@@ -305,8 +303,8 @@ struct cpuInfo* get_cpu_info() {
     cpu->cpu_name = get_str_cpu_name_internal();
   }
   else {
-    cpu->cpu_name = emalloc(sizeof(char)*8);
-    sprintf(cpu->cpu_name,"Unknown");
+    cpu->cpu_name = emalloc(sizeof(char) * (strlen(STRING_UNKNOWN) + 1));
+    strcpy(cpu->cpu_name, STRING_UNKNOWN);
     printWarn("Can't read cpu name from cpuid (needed extended level is 0x%.8X, max is 0x%.8X)", 0x80000004, cpu->maxExtendedLevels);
   }
 
diff --git a/src/x86/uarch.c b/src/x86/uarch.c
index 57ba7f2..b5ceff4 100644
--- a/src/x86/uarch.c
+++ b/src/x86/uarch.c
@@ -38,8 +38,6 @@
 
 typedef uint32_t MICROARCH;
 
-#define STRING_UNKNOWN    "Unknown"
-
 // Data not available
 #define NA                   -1
 
@@ -121,7 +119,7 @@ struct uarch {
 #define UARCH_START if (false) {}
 #define CHECK_UARCH(arch, ef_, f_, em_, m_, s_, str, uarch, process) \
    else if (ef_ == ef && f_ == f && (em_ == NA || em_ == em) && (m_ == NA || m_ == m) && (s_ == NA || s_ == s)) fill_uarch(arch, str, uarch, process);
-#define UARCH_END else { printBug("Unknown microarchitecture detected: M=0x%.8X EM=0x%.8X F=0x%.8X EF=0x%.8X S=0x%.8X", m, em, f, ef, s); fill_uarch(arch, "Unknown", UARCH_UNKNOWN, 0); }
+#define UARCH_END else { printBug("Unknown microarchitecture detected: M=0x%.8X EM=0x%.8X F=0x%.8X EF=0x%.8X S=0x%.8X", m, em, f, ef, s); fill_uarch(arch, STRING_UNKNOWN, UARCH_UNKNOWN, 0); }
 
 void fill_uarch(struct uarch* arch, char* str, MICROARCH u, uint32_t process) {
   arch->uarch_str = emalloc(sizeof(char) * (strlen(str)+1));