diff --git a/README.md b/README.md
index 671260a..3fd39b2 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ Supported platforms:
 - Android
 - QNX Neutrino
 - FreeBSD
+- SunOS
 
 Just drop `whereami.h` and `whereami.c` into your build and get started. (see
 also [customizing compilation])
diff --git a/src/whereami.c b/src/whereami.c
index aa1c2d4..f51ea85 100644
--- a/src/whereami.c
+++ b/src/whereami.c
@@ -158,7 +158,7 @@ int WAI_PREFIX(getModulePath)(char* out, int capacity, int* dirname_length)
   return length;
 }
 
-#elif defined(__linux__) || defined(__CYGWIN__)
+#elif defined(__linux__) || defined(__CYGWIN__) || defined(__sun)
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -170,8 +170,12 @@ int WAI_PREFIX(getModulePath)(char* out, int capacity, int* dirname_length)
 #include <inttypes.h>
 
 #if !defined(WAI_PROC_SELF_EXE)
+#if defined(__sun)
+#define WAI_PROC_SELF_EXE "/proc/self/path/a.out"
+#else
 #define WAI_PROC_SELF_EXE "/proc/self/exe"
 #endif
+#endif
 
 WAI_FUNCSPEC
 int WAI_PREFIX(getExecutablePath)(char* out, int capacity, int* dirname_length)
@@ -217,8 +221,12 @@ int WAI_PREFIX(getExecutablePath)(char* out, int capacity, int* dirname_length)
 #endif
 
 #if !defined(WAI_PROC_SELF_MAPS)
+#if defined(__sun)
+#define WAI_PROC_SELF_MAPS "/proc/self/map"
+#else
 #define WAI_PROC_SELF_MAPS "/proc/self/maps"
 #endif
+#endif
 
 #if defined(__ANDROID__) || defined(ANDROID)
 #include <fcntl.h>